本功能主要有三个文件，分别为：index.html、jquery.floatDiv.js、jquery.js
文件压缩包下载：http://jishu.hao513.com/downloads/div_right_float.rar
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index.html 代码如下：
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>任意位置浮动固定层</title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="jquery.floatDiv.js"></script>
</head>
<body>
<div style="height:1500px;">任意位置浮动固定层</div>
</body>
</html>
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jquery.floatDiv.js 代码如下：
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/////////////////////////////////////////////////////////////////////////
// 主要调用代码，以下代码可直接剪帖到HTML页面调用
/////////////////////////////////////////////////////////////////////////
//以下输出的是固定层的内容，是为了使本JS可同时在多个页面进行包含使用
//如果不需要多页面包含显示相同内容，可将以下DIV放到html页面里去
document.write("<div id="test" style=" width: 300px; height: 200px; line-height:200px; text-align:center; padding:2px; color:white; background-color: #666; border:1px #000 solid;">这是固定在右下角的层</div>");
$(function(){
$("#test").floatdiv(); //在此省略了参数，默认浮动在右下角
});
/////////////////////////////////////////////////////////////////////////
// 以下是函数，不需要修改
/////////////////////////////////////////////////////////////////////////
/*任意位置浮动固定层*/
/*说明：可以让指定的层浮动到网页上的任何位置，当滚动条滚动时它会保持在当前位置不变，不会产生闪动*/
/*调用：$("#id").floatdiv(); //无参数调用，默认浮动在右下角
2 内置固定位置浮动，调用方法
$("#id").floatdiv("rightbottom");//右下角
$("#id").floatdiv("leftbottom");//左下角
$("#id").floatdiv("rightbottom");//右下角
$("#id").floatdiv("lefttop");//左上角
$("#id").floatdiv("righttop");//右上角
$("#id").floatdiv("middle");//居中
另外新添加了四个新的固定位置方法
middletop（居中置顶）、middlebottom（居中置低）、leftmiddle、rightmiddle
3 自定义位置浮动
$("#id").floatdiv({left:"10px",top:"10px"});
以上参数，设置浮动层在left 10个像素,top 10个像素的位置
*/
jQuery.fn.floatdiv=function(location){
//判断浏览器版本
var isIE6=false;
var Sys = {};
var ua = navigator.userAgent.toLowerCase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] : 0;
if(Sys.ie && Sys.ie=="6.0"){
isIE6=true;
}
var windowWidth,windowHeight;//窗口的高和宽
//取得窗口的高和宽
if (self.innerHeight) {
windowWidth=self.innerWidth;
windowHeight=self.innerHeight;
}else if (document.documentElement&&document.documentElement.clientHeight) {
windowWidth=document.documentElement.clientWidth;
windowHeight=document.documentElement.clientHeight;
} else if (document.body) {
windowWidth=document.body.clientWidth;
windowHeight=document.body.clientHeight;
}
return this.each(function(){
var loc;//层的绝对定位位置
var wrap=$("<div></div>");
var top=-1;
if(location==undefined || location.constructor == String){
switch(location){
case("rightbottom")://右下角
loc={right:"0px",bottom:"0px"};
break;
case("leftbottom")://左下角
loc={left:"0px",bottom:"0px"};
break;
case("lefttop")://左上角
loc={left:"0px",top:"0px"};
top=0;
break;
case("righttop")://右上角
loc={right:"0px",top:"0px"};
top=0;
break;
case("middletop")://居中置顶
loc={left:windowWidth/2-$(this).width()/2+"px",top:"0px"};
top=0;
break;
case("middlebottom")://居中置低
loc={left:windowWidth/2-$(this).width()/2+"px",bottom:"0px"};
break;
case("leftmiddle")://左边居中
loc={left:"0px",top:windowHeight/2-$(this).height()/2+"px"};
top=windowHeight/2-$(this).height()/2;
break;
case("rightmiddle")://右边居中
loc={right:"0px",top:windowHeight/2-$(this).height()/2+"px"};
top=windowHeight/2-$(this).height()/2;
break;
case("middle")://居中
var l=0;//居左
var t=0;//居上
l=windowWidth/2-$(this).width()/2;
t=windowHeight/2-$(this).height()/2;
top=t;
loc={left:l+"px",top:t+"px"};
break;
default://默认为右下角
location="rightbottom";
loc={right:"0px",bottom:"0px"};
break;
}
}else{
loc=location;
alert(loc.bottom);
var str=loc.top;
//判断top是否为空
if (typeof(str)!= 'undefined'){
str=str.replace("px","");
top=str;
}
}
/* 兼容IE6 */
if(isIE6){
if (top>=0)
{
wrap=$("<div style="top:expression(documentElement.scrollTop+"+top+");"></div>");
}else{
wrap=$("<div style="top:expression(documentElement.scrollTop+documentElement.clientHeight-this.offsetHeight);"></div>");
}
}
$("body").append(wrap);
wrap.css(loc).css({position:"fixed",z_index:"999"});
if (isIE6)
{
wrap.css("position","absolute");
//没有加这个的话，ie6使用表达式时就会发生跳动现象
//如果HTML页面使用了背景图片，以下代码可能会导致原背景图片无效，请将bg_img_url改为背景图片的路径
$("body").css("background-attachment","fixed").css("background-image","url(bg_img_url)");
}
//将要固定的层添加到固定层里
$(this).appendTo(wrap);
});
};
//如果您的html页面使用到了别的jquery.js，而在此可以不包含本jquery.js文件（如果测试运行正常的话），如果由于jquery.js的不完全相同，而导致某些莫名其妙的JS错误，而又无法修正，在不影响页面功能正常使用的情况下，可使用以下代码进行屏蔽JS的错误输出
window.onerror = function() { return true; } //屏蔽JS的错误显示
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jquery.js 代码如下：
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(function(){
/*
* jQuery 1.2.3 - New Wave Javascript
*
* Copyright (c) 2008 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2008-02-06 00:21:25 -0500 (Wed, 06 Feb 2008) $
* $Rev: 4663 $
*/
// Map over jQuery in case of overwrite
if ( window.jQuery )
var _jQuery = window.jQuery;
var jQuery = window.jQuery = function( selector, context ) {
// The jQuery object is actually just the init constructor 'enhanced'
return new jQuery.prototype.init( selector, context );
};
// Map over the $ in case of overwrite
if ( window.$ )
var _$ = window.$;
// Map the jQuery namespace to the '$' one
window.$ = jQuery;
// A simple way to check for HTML strings or ID strings
// (both of which we optimize for)
var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/;
// Is it a simple selector
var isSimple = /^.[^:#\[\.]*$/;
jQuery.fn = jQuery.prototype = {
init: function( selector, context ) {
// Make sure that a selection was provided
selector = selector || document;
// Handle $(DOMElement)
if ( selector.nodeType ) {
this[0] = selector;
this.length = 1;
return this;
// Handle HTML strings
} else if ( typeof selector == "string" ) {
// Are we dealing with HTML string or an ID?
var match = quickExpr.exec( selector );
// Verify a match, and that no context was specified for #id
if ( match && (match[1] || !context) ) {
// HANDLE: $(html) -> $(array)
if ( match[1] )
selector = jQuery.clean( [ match[1] ], context );
// HANDLE: $("#id")
else {
var elem = document.getElementById( match[3] );
// Make sure an element was located
if ( elem )
// Handle the case where IE and Opera return items
// by name instead of ID
if ( elem.id != match[3] )
return jQuery().find( selector );
// Otherwise, we inject the element directly into the jQuery object
else {
this[0] = elem;
this.length = 1;
return this;
}
else
selector = [];
}
// HANDLE: $(expr, [context])
// (which is just equivalent to: $(content).find(expr)
} else
return new jQuery( context ).find( selector );
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) )
return new jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector );
return this.setArray(
// HANDLE: $(array)
selector.constructor == Array && selector ||
// HANDLE: $(arraylike)
// Watch for when an array-like object, contains DOM nodes, is passed in as the selector
(selector.jquery || selector.length && selector != window && !selector.nodeType && selector[0] != undefined && selector[0].nodeType) && jQuery.makeArray( selector ) ||
// HANDLE: $(*)
[ selector ] );
},
// The current version of jQuery being used
jquery: "1.2.3",
// The number of elements contained in the matched element set
size: function() {
return this.length;
},
// The number of elements contained in the matched element set
length: 0,
// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
return num == undefined ?
// Return a 'clean' array
jQuery.makeArray( this ) :
// Return just the object
this[ num ];
},
// Take an array of elements and push it onto the stack
// (returning the new matched element set)
pushStack: function( elems ) {
// Build a new jQuery matched element set
var ret = jQuery( elems );
// Add the old object onto the stack (as a reference)
ret.prevObject = this;
// Return the newly-formed element set
return ret;
},
// Force the current matched set of elements to become
// the specified array of elements (destroying the stack in the process)
// You should use pushStack() in order to do this, but maintain the stack
setArray: function( elems ) {
// Resetting the length to 0, then using the native Array push
// is a super-fast way to populate an object with array-like properties
this.length = 0;
Array.prototype.push.apply( this, elems );
return this;
},
// Execute a callback for every element in the matched set.
// (You can seed the arguments with an array of args, but this is
// only used internally.)
each: function( callback, args ) {
return jQuery.each( this, callback, args );
},
// Determine the position of an element within
// the matched set of elements
index: function( elem ) {
var ret = -1;
// Locate the position of the desired element
this.each(function(i){
if ( this == elem )
ret = i;
});
return ret;
},
attr: function( name, value, type ) {
var options = name;
// Look for the case where we're accessing a style value
if ( name.constructor == String )
if ( value == undefined )
return this.length && jQuery[ type || "attr" ]( this[0], name ) || undefined;
else {
options = {};
options[ name ] = value;
}
// Check to see if we're setting style values
return this.each(function(i){
// Set all the styles
for ( name in options )
jQuery.attr(
type ?
this.style :
this,
name, jQuery.prop( this, options[ name ], type, i, name )
);
});
},
css: function( key, value ) {
// ignore negative width and height values
if ( (key == 'width' || key == 'height') && parseFloat(value) < 0 )
value = undefined;
return this.attr( key, value, "curCSS" );
},
text: function( text ) {
if ( typeof text != "object" && text != null )
return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
var ret = "";
jQuery.each( text || this, function(){
jQuery.each( this.childNodes, function(){
if ( this.nodeType != 8 )
ret += this.nodeType != 1 ?
this.nodeValue :
jQuery.fn.text( [ this ] );
});
});
return ret;
},
wrapAll: function( html ) {
if ( this[0] )
// The elements to wrap the target around
jQuery( html, this[0].ownerDocument )
.clone()
.insertBefore( this[0] )
.map(function(){
var elem = this;
while ( elem.firstChild )
elem = elem.firstChild;
return elem;
})
.append(this);
return this;
},
wrapInner: function( html ) {
return this.each(function(){
jQuery( this ).contents().wrapAll( html );
});
},
wrap: function( html ) {
return this.each(function(){
jQuery( this ).wrapAll( html );
});
},
append: function() {
return this.domManip(arguments, true, false, function(elem){
if (this.nodeType == 1)
this.appendChild( elem );
});
},
prepend: function() {
return this.domManip(arguments, true, true, function(elem){
if (this.nodeType == 1)
this.insertBefore( elem, this.firstChild );
});
},
before: function() {
return this.domManip(arguments, false, false, function(elem){
this.parentNode.insertBefore( elem, this );
});
},
after: function() {
return this.domManip(arguments, false, true, function(elem){
this.parentNode.insertBefore( elem, this.nextSibling );
});
},
end: function() {
return this.prevObject || jQuery( [] );
},
find: function( selector ) {
var elems = jQuery.map(this, function(elem){
return jQuery.find( selector, elem );
});
return this.pushStack( /[^+>] [^+>]/.test( selector ) || selector.indexOf("..") > -1 ?
jQuery.unique( elems ) :
elems );
},
clone: function( events ) {
// Do the clone
var ret = this.map(function(){
if ( jQuery.browser.msie && !jQuery.isXMLDoc(this) ) {
// IE copies events bound via attachEvent when
// using cloneNode. Calling detachEvent on the
// clone will also remove the events from the orignal
// In order to get around this, we use innerHTML.
// Unfortunately, this means some modifications to
// attributes in IE that are actually only stored
// as properties will not be copied (such as the
// the name attribute on an input).
var clone = this.cloneNode(true),
container = document.createElement("div");
container.appendChild(clone);
return jQuery.clean([container.innerHTML])[0];
} else
return this.cloneNode(true);
});
// Need to set the expando to null on the cloned set if it exists
// removeData doesn't work here, IE removes it from the original as well
// this is primarily for IE but the data expando shouldn't be copied over in any browser
var clone = ret.find("*").andSelf().each(function(){
if ( this[ expando ] != undefined )
this[ expando ] = null;
});
// Copy the events from the original to the clone
if ( events === true )
this.find("*").andSelf().each(function(i){
if (this.nodeType == 3)
return;
var events = jQuery.data( this, "events" );
for ( var type in events )
for ( var handler in events[ type ] )
jQuery.event.add( clone[ i ], type, events[ type ][ handler ], events[ type ][ handler ].data );
});
// Return the cloned set
return ret;
},
filter: function( selector ) {
return this.pushStack(
jQuery.isFunction( selector ) &&
jQuery.grep(this, function(elem, i){
return selector.call( elem, i );
}) ||
jQuery.multiFilter( selector, this ) );
},
not: function( selector ) {
if ( selector.constructor == String )
// test special case where just one selector is passed in
if ( isSimple.test( selector ) )
return this.pushStack( jQuery.multiFilter( selector, this, true ) );
else
selector = jQuery.multiFilter( selector, this );
var isArrayLike = selector.length && selector[selector.length - 1] !== undefined && !selector.nodeType;
return this.filter(function() {
return isArrayLike ? jQuery.inArray( this, selector ) < 0 : this != selector;
});
},
add: function( selector ) {
return !selector ? this : this.pushStack( jQuery.merge(
this.get(),
selector.constructor == String ?
jQuery( selector ).get() :
selector.length != undefined && (!selector.nodeName || jQuery.nodeName(selector, "form")) ?
selector : [selector] ) );
},
is: function( selector ) {
return selector ?
jQuery.multiFilter( selector, this ).length > 0 :
false;
},
hasClass: function( selector ) {
return this.is( "." + selector );
},
val: function( value ) {
if ( value == undefined ) {
if ( this.length ) {
var elem = this[0];
// We need to handle select boxes special
if ( jQuery.nodeName( elem, "select" ) ) {
var index = elem.selectedIndex,
values = [],
options = elem.options,
one = elem.type == "select-one";
// Nothing was selected
if ( index < 0 )
return null;
// Loop through all the selected options
for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
var option = options[ i ];
if ( option.selected ) {
// Get the specifc value for the option
value = jQuery.browser.msie && !option.attributes.value.specified ? option.text : option.value;
// We don't need an array for one selects
if ( one )
return value;
// Multi-Selects return an array
values.push( value );
}
}
return values;
// Everything else, we just grab the value
} else
return (this[0].value || "").replace(/\r/g, "");
}
return undefined;
}
return this.each(function(){
if ( this.nodeType != 1 )
return;
if ( value.constructor == Array && /radio|checkbox/.test( this.type ) )
this.checked = (jQuery.inArray(this.value, value) >= 0 ||
jQuery.inArray(this.name, value) >= 0);
else if ( jQuery.nodeName( this, "select" ) ) {
var values = value.constructor == Array ?
value :
[ value ];
jQuery( "option", this ).each(function(){
this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
jQuery.inArray( this.text, values ) >= 0);
});
if ( !values.length )
this.selectedIndex = -1;
} else
this.value = value;
});
},
html: function( value ) {
return value == undefined ?
(this.length ?
this[0].innerHTML :
null) :
this.empty().append( value );
},
replaceWith: function( value ) {
return this.after( value ).remove();
},
eq: function( i ) {
return this.slice( i, i + 1 );
},
slice: function() {
return this.pushStack( Array.prototype.slice.apply( this, arguments ) );
},
map: function( callback ) {
return this.pushStack( jQuery.map(this, function(elem, i){
return callback.call( elem, i, elem );
}));
},
andSelf: function() {
return this.add( this.prevObject );
},
data: function( key, value ){
var parts = key.split(".");
parts[1] = parts[1] ? "." + parts[1] : "";
if ( value == null ) {
var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
if ( data == undefined && this.length )
data = jQuery.data( this[0], key );
return data == null && parts[1] ?
this.data( parts[0] ) :
data;
} else
return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function(){
jQuery.data( this, key, value );
});
},
removeData: function( key ){
return this.each(function(){
jQuery.removeData( this, key );
});
},
domManip: function( args, table, reverse, callback ) {
var clone = this.length > 1, elems;
return this.each(function(){
if ( !elems ) {
elems = jQuery.clean( args, this.ownerDocument );
if ( reverse )
elems.reverse();
}
var obj = this;
if ( table && jQuery.nodeName( this, "table" ) && jQuery.nodeName( elems[0], "tr" ) )
obj = this.getElementsByTagName("tbody")[0] || this.appendChild( this.ownerDocument.createElement("tbody") );
var scripts = jQuery( [] );
jQuery.each(elems, function(){
var elem = clone ?
jQuery( this ).clone( true )[0] :
this;
// execute all scripts after the elements have been injected
if ( jQuery.nodeName( elem, "script" ) ) {
scripts = scripts.add( elem );
} else {
// Remove any inner scripts for later evaluation
if ( elem.nodeType == 1 )
scripts = scripts.add( jQuery( "script", elem ).remove() );
// Inject the elements into the document
callback.call( obj, elem );
}
});
scripts.each( evalScript );
});
}
};
// Give the init function the jQuery prototype for later instantiation
jQuery.prototype.init.prototype = jQuery.prototype;
function evalScript( i, elem ) {
if ( elem.src )
jQuery.ajax({
url: elem.src,
async: false,
dataType: "script"
});
else
jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
if ( elem.parentNode )
elem.parentNode.removeChild( elem );
}
jQuery.extend = jQuery.fn.extend = function() {
// copy reference to target object
var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;
// Handle a deep copy situation
if ( target.constructor == Boolean ) {
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target != "object" && typeof target != "function" )
target = {};
// extend jQuery itself if only one argument is passed
if ( length == 1 ) {
target = this;
i = 0;
}
for ( ; i < length; i++ )
// Only deal with non-null/undefined values
if ( (options = arguments[ i ]) != null )
// Extend the base object
for ( var name in options ) {
// Prevent never-ending loop
if ( target === options[ name ] )
continue;
// Recurse if we're merging object values
if ( deep && options[ name ] && typeof options[ name ] == "object" && target[ name ] && !options[ name ].nodeType )
target[ name ] = jQuery.extend( target[ name ], options[ name ] );
// Don't bring in undefined values
else if ( options[ name ] != undefined )
target[ name ] = options[ name ];
}
// Return the modified object
return target;
};
var expando = "jQuery" + (new Date()).getTime(), uuid = 0, windowData = {};
// exclude the following css properties to add px
var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
jQuery.extend({
noConflict: function( deep ) {
window.$ = _$;
if ( deep )
window.jQuery = _jQuery;
return jQuery;
},
// See test/unit/core.js for details concerning this function.
isFunction: function( fn ) {
return !!fn && typeof fn != "string" && !fn.nodeName &&
fn.constructor != Array && /function/i.test( fn + "" );
},
// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
return elem.documentElement && !elem.body ||
elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
},
// Evalulates a script in a global context
globalEval: function( data ) {
data = jQuery.trim( data );
if ( data ) {
// Inspired by code by Andrea Giammarchi
// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
var head = document.getElementsByTagName("head")[0] || document.documentElement,
script = document.createElement("script");
script.type = "text/javascript";
if ( jQuery.browser.msie )
script.text = data;
else
script.appendChild( document.createTextNode( data ) );
head.appendChild( script );
head.removeChild( script );
}
},
nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
},
cache: {},
data: function( elem, name, data ) {
elem = elem == window ?
windowData :
elem;
var id = elem[ expando ];
// Compute a unique ID for the element
if ( !id )
id = elem[ expando ] = ++uuid;
// Only generate the data cache if we're
// trying to access or manipulate it
if ( name && !jQuery.cache[ id ] )
jQuery.cache[ id ] = {};
// Prevent overriding the named cache with undefined values
if ( data != undefined )
jQuery.cache[ id ][ name ] = data;
// Return the named cache data, or the ID for the element
return name ?
jQuery.cache[ id ][ name ] :
id;
},
removeData: function( elem, name ) {
elem = elem == window ?
windowData :
elem;
var id = elem[ expando ];
// If we want to remove a specific section of the element's data
if ( name ) {
if ( jQuery.cache[ id ] ) {
// Remove the section of cache data
delete jQuery.cache[ id ][ name ];
// If we've removed all the data, remove the element's cache
name = "";
for ( name in jQuery.cache[ id ] )
break;
if ( !name )
jQuery.removeData( elem );
}
// Otherwise, we want to remove all of the element's data
} else {
// Clean up the element expando
try {
delete elem[ expando ];
} catch(e){
// IE has trouble directly removing the expando
// but it's ok with using removeAttribute
if ( elem.removeAttribute )
elem.removeAttribute( expando );
}
// Completely remove the data cache
delete jQuery.cache[ id ];
}
},
// args is for internal usage only
each: function( object, callback, args ) {
if ( args ) {
if ( object.length == undefined ) {
for ( var name in object )
if ( callback.apply( object[ name ], args ) === false )
break;
} else
for ( var i = 0, length = object.length; i < length; i++ )
if ( callback.apply( object[ i ], args ) === false )
break;
// A special, fast, case for the most common use of each
} else {
if ( object.length == undefined ) {
for ( var name in object )
if ( callback.call( object[ name ], name, object[ name ] ) === false )
break;
} else
for ( var i = 0, length = object.length, value = object[0];
i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
}
return object;
},
prop: function( elem, value, type, i, name ) {
// Handle executable functions
if ( jQuery.isFunction( value ) )
value = value.call( elem, i );
// Handle passing in a number to a CSS property
return value && value.constructor == Number && type == "curCSS" && !exclude.test( name ) ?
value + "px" :
value;
},
className: {
// internal only, use addClass("class")
add: function( elem, classNames ) {
jQuery.each((classNames || "").split(/\s+/), function(i, className){
if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
elem.className += (elem.className ? " " : "") + className;
});
},
// internal only, use removeClass("class")
remove: function( elem, classNames ) {
if (elem.nodeType == 1)
elem.className = classNames != undefined ?
jQuery.grep(elem.className.split(/\s+/), function(className){
return !jQuery.className.has( classNames, className );
}).join(" ") :
"";
},
// internal only, use is(".class")
has: function( elem, className ) {
return jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
}
},
// A method for quickly swapping in/out CSS properties to get correct calculations
swap: function( elem, options, callback ) {
var old = {};
// Remember the old values, and insert the new ones
for ( var name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
callback.call( elem );
// Revert the old values
for ( var name in options )
elem.style[ name ] = old[ name ];
},
css: function( elem, name, force ) {
if ( name == "width" || name == "height" ) {
var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];
function getWH() {
val = name == "width" ? elem.offsetWidth : elem.offsetHeight;
var padding = 0, border = 0;
jQuery.each( which, function() {
padding += parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
border += parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
});
val -= Math.round(padding + border);
}
if ( jQuery(elem).is(":visible") )
getWH();
else
jQuery.swap( elem, props, getWH );
return Math.max(0, val);
}
return jQuery.curCSS( elem, name, force );
},
curCSS: function( elem, name, force ) {
var ret;
// A helper method for determining if an element's values are broken
function color( elem ) {
if ( !jQuery.browser.safari )
return false;
var ret = document.defaultView.getComputedStyle( elem, null );
return !ret || ret.getPropertyValue("color") == "";
}
// We need to handle opacity special in IE
if ( name == "opacity" && jQuery.browser.msie ) {
ret = jQuery.attr( elem.style, "opacity" );
return ret == "" ?
"1" :
ret;
}
// Opera sometimes will give the wrong display answer, this fixes it, see #2037
if ( jQuery.browser.opera && name == "display" ) {
var save = elem.style.outline;
elem.style.outline = "0 solid black";
elem.style.outline = save;
}
// Make sure we're using the right name for getting the float value
if ( name.match( /float/i ) )
name = styleFloat;
if ( !force && elem.style && elem.style[ name ] )
ret = elem.style[ name ];
else if ( document.defaultView && document.defaultView.getComputedStyle ) {
// Only "float" is needed here
if ( name.match( /float/i ) )
name = "float";
name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
var getComputedStyle = document.defaultView.getComputedStyle( elem, null );
if ( getComputedStyle && !color( elem ) )
ret = getComputedStyle.getPropertyValue( name );
// If the element isn't reporting its values properly in Safari
// then some display: none elements are involved
else {
var swap = [], stack = [];
// Locate all of the parent display: none elements
for ( var a = elem; a && color(a); a = a.parentNode )
stack.unshift(a);
// Go through and make them visible, but in reverse
// (It would be better if we knew the exact display type that they had)
for ( var i = 0; i < stack.length; i++ )
if ( color( stack[ i ] ) ) {
swap[ i ] = stack[ i ].style.display;
stack[ i ].style.display = "block";
}
// Since we flip the display style, we have to handle that
// one special, otherwise get the value
ret = name == "display" && swap[ stack.length - 1 ] != null ?
"none" :
( getComputedStyle && getComputedStyle.getPropertyValue( name ) ) || "";
// Finally, revert the display styles back
for ( var i = 0; i < swap.length; i++ )
if ( swap[ i ] != null )
stack[ i ].style.display = swap[ i ];
}
// We should always get a number back from opacity
if ( name == "opacity" && ret == "" )
ret = "1";
} else if ( elem.currentStyle ) {
var camelCase = name.replace(/\-(\w)/g, function(all, letter){
return letter.toUpperCase();
});
ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
// From the awesome hack by Dean Edwards
// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
// If we're not dealing with a regular pixel number
// but a number that has a weird ending, we need to convert it to pixels
if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) {
// Remember the original values
var style = elem.style.left, runtimeStyle = elem.runtimeStyle.left;
// Put in the new values to get a computed value out
elem.runtimeStyle.left = elem.currentStyle.left;
elem.style.left = ret || 0;
ret = elem.style.pixelLeft + "px";
// Revert the changed values
elem.style.left = style;
elem.runtimeStyle.left = runtimeStyle;
}
}
return ret;
},
clean: function( elems, context ) {
var ret = [];
context = context || document;
// !context.createElement fails in IE with an error but returns typeof 'object'
if (typeof context.createElement == 'undefined')
context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
jQuery.each(elems, function(i, elem){
if ( !elem )
return;
if ( elem.constructor == Number )
elem = elem.toString();
// Convert html string into DOM nodes
if ( typeof elem == "string" ) {
// Fix "XHTML"-style tags in all browsers
elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){
return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
all :
front + "></" + tag + ">";
});
// Trim whitespace, otherwise indexOf won't work as expected
var tags = jQuery.trim( elem ).toLowerCase(), div = context.createElement("div");
var wrap =
// option or optgroup
!tags.indexOf("<opt") &&
[ 1, "<select multiple='multiple'>", "</select>" ] ||
!tags.indexOf("<leg") &&
[ 1, "<fieldset>", "</fieldset>" ] ||
tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
[ 1, "<table>", "</table>" ] ||
!tags.indexOf("<tr") &&
[ 2, "<table><tbody>", "</tbody></table>" ] ||
// <thead> matched above
(!tags.indexOf("<td") || !tags.indexOf("<th")) &&
[ 3, "<table><tbody><tr>", "</tr></tbody></table>" ] ||
!tags.indexOf("<col") &&
[ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ] ||
// IE can't serialize <link> and <script> tags normally
jQuery.browser.msie &&
[ 1, "div<div>", "</div>" ] ||
[ 0, "", "" ];
// Go to html and back, then peel off extra wrappers
div.innerHTML = wrap[1] + elem + wrap[2];
// Move to the right depth
while ( wrap[0]-- )
div = div.lastChild;
// Remove IE's autoinserted <tbody> from table fragments
if ( jQuery.browser.msie ) {
// String was a <table>, *may* have spurious <tbody>
var tbody = !tags.indexOf("<table") && tags.indexOf("<tbody") < 0 ?
div.firstChild && div.firstChild.childNodes :
// String was a bare <thead> or <tfoot>
wrap[1] == "<table>" && tags.indexOf("<tbody") < 0 ?
div.childNodes :
[];
for ( var j = tbody.length - 1; j >= 0 ; --j )
if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length )
tbody[ j ].parentNode.removeChild( tbody[ j ] );
// IE completely kills leading whitespace when innerHTML is used
if ( /^\s/.test( elem ) )
div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild );
}
elem = jQuery.makeArray( div.childNodes );
}
if ( elem.length === 0 && (!jQuery.nodeName( elem, "form" ) && !jQuery.nodeName( elem, "select" )) )
return;
if ( elem[0] == undefined || jQuery.nodeName( elem, "form" ) || elem.options )
ret.push( elem );
else
ret = jQuery.merge( ret, elem );
});
return ret;
},
attr: function( elem, name, value ) {
// don't set attributes on text and comment nodes
if (!elem || elem.nodeType == 3 || elem.nodeType == 8)
return undefined;
var fix = jQuery.isXMLDoc( elem ) ?
{} :
jQuery.props;
// Safari mis-reports the default selected property of a hidden option
// Accessing the parent's selectedIndex property fixes it
if ( name == "selected" && jQuery.browser.safari )
elem.parentNode.selectedIndex;
// Certain attributes only work when accessed via the old DOM 0 way
if ( fix[ name ] ) {
if ( value != undefined )
elem[ fix[ name ] ] = value;
return elem[ fix[ name ] ];
} else if ( jQuery.browser.msie && name == "style" )
return jQuery.attr( elem.style, "cssText", value );
else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName( elem, "form" ) && (name == "action" || name == "method") )
return elem.getAttributeNode( name ).nodeValue;
// IE elem.getAttribute passes even for style
else if ( elem.tagName ) {
if ( value != undefined ) {
// We can't allow the type property to be changed (since it causes problems in IE)
if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode )
throw "type property can't be changed";
// convert the value to a string (all browsers do this but IE) see #1070
elem.setAttribute( name, "" + value );
}
if ( jQuery.browser.msie && /href|src/.test( name ) && !jQuery.isXMLDoc( elem ) )
return elem.getAttribute( name, 2 );
return elem.getAttribute( name );
// elem is actually elem.style ... set the style
} else {
// IE actually uses filters for opacity
if ( name == "opacity" && jQuery.browser.msie ) {
if ( value != undefined ) {
// IE has trouble with opacity if it does not have layout
// Force it by setting the zoom level
elem.zoom = 1;
// Set the alpha filter to set the opacity
elem.filter = (elem.filter || "").replace( /alpha\([^)]*\)/, "" ) +
(parseFloat( value ).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
}
return elem.filter && elem.filter.indexOf("opacity=") >= 0 ?
(parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() :
"";
}
name = name.replace(/-([a-z])/ig, function(all, letter){
return letter.toUpperCase();
});
if ( value != undefined )
elem[ name ] = value;
return elem[ name ];
}
},
trim: function( text ) {
return (text || "").replace( /^\s+|\s+$/g, "" );
},
makeArray: function( array ) {
var ret = [];
// Need to use typeof to fight Safari childNodes crashes
if ( typeof array != "array" )
for ( var i = 0, length = array.length; i < length; i++ )
ret.push( array[ i ] );
else
ret = array.slice( 0 );
return ret;
},
inArray: function( elem, array ) {
for ( var i = 0, length = array.length; i < length; i++ )
if ( array[ i ] == elem )
return i;
return -1;
},
merge: function( first, second ) {
// We have to loop this way because IE & Opera overwrite the length
// expando of getElementsByTagName
// Also, we need to make sure that the correct elements are being returned
// (IE returns comment nodes in a '*' query)
if ( jQuery.browser.msie ) {
for ( var i = 0; second[ i ]; i++ )
if ( second[ i ].nodeType != 8 )
first.push( second[ i ] );
} else
for ( var i = 0; second[ i ]; i++ )
first.push( second[ i ] );
return first;
},
unique: function( array ) {
var ret = [], done = {};
try {
for ( var i = 0, length = array.length; i < length; i++ ) {
var id = jQuery.data( array[ i ] );
if ( !done[ id ] ) {
done[ id ] = true;
ret.push( array[ i ] );
}
}
} catch( e ) {
ret = array;
}
return ret;
},
grep: function( elems, callback, inv ) {
var ret = [];
// Go through the array, only saving the items
// that pass the validator function
for ( var i = 0, length = elems.length; i < length; i++ )
if ( !inv && callback( elems[ i ], i ) || inv && !callback( elems[ i ], i ) )
ret.push( elems[ i ] );
return ret;
},
map: function( elems, callback ) {
var ret = [];
// Go through the array, translating each of the items to their
// new value (or values).
for ( var i = 0, length = elems.length; i < length; i++ ) {
var value = callback( elems[ i ], i );
if ( value !== null && value != undefined ) {
if ( value.constructor != Array )
value = [ value ];
ret = ret.concat( value );
}
}
return ret;
}
});
var userAgent = navigator.userAgent.toLowerCase();
// Figure out what browser is being used
jQuery.browser = {
version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [])[1],
safari: /webkit/.test( userAgent ),
opera: /opera/.test( userAgent ),
msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
};
var styleFloat = jQuery.browser.msie ?
"styleFloat" :
"cssFloat";
jQuery.extend({
// Check to see if the W3C box model is being used
boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
props: {
"for": "htmlFor",
"class": "className",
"float": styleFloat,
cssFloat: styleFloat,
styleFloat: styleFloat,
innerHTML: "innerHTML",
className: "className",
value: "value",
disabled: "disabled",
checked: "checked",
readonly: "readOnly",
selected: "selected",
maxlength: "maxLength",
selectedIndex: "selectedIndex",
defaultValue: "defaultValue",
tagName: "tagName",
nodeName: "nodeName"
}
});
jQuery.each({
parent: function(elem){return elem.parentNode;},
parents: function(elem){return jQuery.dir(elem,"parentNode");},
next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
children: function(elem){return jQuery.sibling(elem.firstChild);},
contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
}, function(name, fn){
jQuery.fn[ name ] = function( selector ) {
var ret = jQuery.map( this, fn );
if ( selector && typeof selector == "string" )
ret = jQuery.multiFilter( selector, ret );
return this.pushStack( jQuery.unique( ret ) );
};
});
jQuery.each({
appendTo: "append",
prependTo: "prepend",
insertBefore: "before",
insertAfter: "after",
replaceAll: "replaceWith"
}, function(name, original){
jQuery.fn[ name ] = function() {
var args = arguments;
return this.each(function(){
for ( var i = 0, length = args.length; i < length; i++ )
jQuery( args[ i ] )[ original ]( this );
});
};
});
jQuery.each({
removeAttr: function( name ) {
jQuery.attr( this, name, "" );
if (this.nodeType == 1)
this.removeAttribute( name );
},
addClass: function( classNames ) {
jQuery.className.add( this, classNames );
},
removeClass: function( classNames ) {
jQuery.className.remove( this, classNames );
},
toggleClass: function( classNames ) {
jQuery.className[ jQuery.className.has( this, classNames ) ? "remove" : "add" ]( this, classNames );
},
remove: function( selector ) {
if ( !selector || jQuery.filter( selector, [ this ] ).r.length ) {
// Prevent memory leaks
jQuery( "*", this ).add(this).each(function(){
jQuery.event.remove(this);
jQuery.removeData(this);
});
if (this.parentNode)
this.parentNode.removeChild( this );
}
},
empty: function() {
// Remove element nodes and prevent memory leaks
jQuery( ">*", this ).remove();
// Remove any remaining nodes
while ( this.firstChild )
this.removeChild( this.firstChild );
}
}, function(name, fn){
jQuery.fn[ name ] = function(){
return this.each( fn, arguments );
};
});
jQuery.each([ "Height", "Width" ], function(i, name){
var type = name.toLowerCase();
jQuery.fn[ type ] = function( size ) {
// Get window width or height
return this[0] == window ?
// Opera reports document.body.client[Width/Height] properly in both quirks and standards
jQuery.browser.opera && document.body[ "client" + name ] ||
// Safari reports inner[Width/Height] just fine (Mozilla and Opera include scroll bar widths)
jQuery.browser.safari && window[ "inner" + name ] ||
// Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
document.compatMode == "CSS1Compat" && document.documentElement[ "client" + name ] || document.body[ "client" + name ] :
// Get document width or height
this[0] == document ?
// Either scroll[Width/Height] or offset[Width/Height], whichever is greater
Math.max(
Math.max(document.body["scroll" + name], document.documentElement["scroll" + name]),
Math.max(document.body["offset" + name], document.documentElement["offset" + name])
) :
// Get or set width or height on the element
size == undefined ?
// Get width or height on the element
(this.length ? jQuery.css( this[0], type ) : null) :
// Set the width or height on the element (default to pixels if value is unitless)
this.css( type, size.constructor == String ? size : size + "px" );
};
});
var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ?
"(?:[\w*_-]|\.)" :
"(?:[\w\u0128-\uFFFF*_-]|\.)",
quickChild = new RegExp("^>\s*(" + chars + "+)"),
quickID = new RegExp("^(" + chars + "+)(#)(" + chars + "+)"),
quickClass = new RegExp("^([#.]?)(" + chars + "*)");
jQuery.extend({
expr: {
"": function(a,i,m){return m[2]=="*"||jQuery.nodeName(a,m[2]);},
"#": function(a,i,m){return a.getAttribute("id")==m[2];},
":": {
// Position Checks
lt: function(a,i,m){return i<m[3]-0;},
gt: function(a,i,m){return i>m[3]-0;},
nth: function(a,i,m){return m[3]-0==i;},
eq: function(a,i,m){return m[3]-0==i;},
first: function(a,i){return i==0;},
last: function(a,i,m,r){return i==r.length-1;},
even: function(a,i){return i%2==0;},
odd: function(a,i){return i%2;},
// Child Checks
"first-child": function(a){return a.parentNode.getElementsByTagName("*")[0]==a;},
"last-child": function(a){return jQuery.nth(a.parentNode.lastChild,1,"previousSibling")==a;},
"only-child": function(a){return !jQuery.nth(a.parentNode.lastChild,2,"previousSibling");},
// Parent Checks
parent: function(a){return a.firstChild;},
empty: function(a){return !a.firstChild;},
// Text Check
contains: function(a,i,m){return (a.textContent||a.innerText||jQuery(a).text()||"").indexOf(m[3])>=0;},
// Visibility
visible: function(a){return "hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden";},
hidden: function(a){return "hidden"==a.type||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden";},
// Form attributes
enabled: function(a){return !a.disabled;},
disabled: function(a){return a.disabled;},
checked: function(a){return a.checked;},
selected: function(a){return a.selected||jQuery.attr(a,"selected");},
// Form elements
text: function(a){return "text"==a.type;},
radio: function(a){return "radio"==a.type;},
checkbox: function(a){return "checkbox"==a.type;},
file: function(a){return "file"==a.type;},
password: function(a){return "password"==a.type;},
submit: function(a){return "submit"==a.type;},
image: function(a){return "image"==a.type;},
reset: function(a){return "reset"==a.type;},
button: function(a){return "button"==a.type||jQuery.nodeName(a,"button");},
input: function(a){return /input|select|textarea|button/i.test(a.nodeName);},
// :has()
has: function(a,i,m){return jQuery.find(m[3],a).length;},
// :header
header: function(a){return /h\d/i.test(a.nodeName);},
// :animated
animated: function(a){return jQuery.grep(jQuery.timers,function(fn){return a==fn.elem;}).length;}
}
},
// The regular expressions that power the parsing engine
parse: [
// Match: [@value='test'], [@foo]
/^(\[) *@?([\w-]+) *([!*$^~=]*) *('?"?)(.*?)\4 *\]/,
// Match: :contains('foo')
/^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/,
// Match: :even, :last-chlid, #id, .class
new RegExp("^([:.#]*)(" + chars + "+)")
],
multiFilter: function( expr, elems, not ) {
var old, cur = [];
while ( expr && expr != old ) {
old = expr;
var f = jQuery.filter( expr, elems, not );
expr = f.t.replace(/^\s*,\s*/, "" );
cur = not ? elems = f.r : jQuery.merge( cur, f.r );
}
return cur;
},
find: function( t, context ) {
// Quickly handle non-string expressions
if ( typeof t != "string" )
return [ t ];
// check to make sure context is a DOM element or a document
if ( context && context.nodeType != 1 && context.nodeType != 9)
return [ ];
// Set the correct context (if none is provided)
context = context || document;
// Initialize the search
var ret = [context], done = [], last, nodeName;
// Continue while a selector expression exists, and while
// we're no longer looping upon ourselves
while ( t && last != t ) {
var r = [];
last = t;
t = jQuery.trim(t);
var foundToken = false;
// An attempt at speeding up child selectors that
// point to a specific element tag
var re = quickChild;
var m = re.exec(t);
if ( m ) {
nodeName = m[1].toUpperCase();
// Perform our own iteration and filter
for ( var i = 0; ret[i]; i++ )
for ( var c = ret[i].firstChild; c; c = c.nextSibling )
if ( c.nodeType == 1 && (nodeName == "*" || c.nodeName.toUpperCase() == nodeName) )
r.push( c );
ret = r;
t = t.replace( re, "" );
if ( t.indexOf(" ") == 0 ) continue;
foundToken = true;
} else {
re = /^([>+~])\s*(\w*)/i;
if ( (m = re.exec(t)) != null ) {
r = [];
var merge = {};
nodeName = m[2].toUpperCase();
m = m[1];
for ( var j = 0, rl = ret.length; j < rl; j++ ) {
var n = m == "~" || m == "+" ? ret[j].nextSibling : ret[j].firstChild;
for ( ; n; n = n.nextSibling )
if ( n.nodeType == 1 ) {
var id = jQuery.data(n);
if ( m == "~" && merge[id] ) break;
if (!nodeName || n.nodeName.toUpperCase() == nodeName ) {
if ( m == "~" ) merge[id] = true;
r.push( n );
}
if ( m == "+" ) break;
}
}
ret = r;
// And remove the token
t = jQuery.trim( t.replace( re, "" ) );
foundToken = true;
}
}
// See if there's still an expression, and that we haven't already
// matched a token
if ( t && !foundToken ) {
// Handle multiple expressions
if ( !t.indexOf(",") ) {
// Clean the result set
if ( context == ret[0] ) ret.shift();
// Merge the result sets
done = jQuery.merge( done, ret );
// Reset the context
r = ret = [context];
// Touch up the selector string
t = " " + t.substr(1,t.length);
} else {
// Optimize for the case nodeName#idName
var re2 = quickID;
var m = re2.exec(t);
// Re-organize the results, so that they're consistent
if ( m ) {
m = [ 0, m[2], m[3], m[1] ];
} else {
// Otherwise, do a traditional filter check for
// ID, class, and element selectors
re2 = quickClass;
m = re2.exec(t);
}
m[2] = m[2].replace(/\/g, "");
var elem = ret[ret.length-1];
// Try to do a global search by ID, where we can
if ( m[1] == "#" && elem && elem.getElementById && !jQuery.isXMLDoc(elem) ) {
// Optimization for HTML document case
var oid = elem.getElementById(m[2]);
// Do a quick check for the existence of the actual ID attribute
// to avoid selecting by the name attribute in IE
// also check to insure id is a string to avoid selecting an element with the name of 'id' inside a form
if ( (jQuery.browser.msie||jQuery.browser.opera) && oid && typeof oid.id == "string" && oid.id != m[2] )
oid = jQuery('[@id="'+m[2]+'"]', elem)[0];
// Do a quick check for node name (where applicable) so
// that div#foo searches will be really fast
ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];
} else {
// We need to find all descendant elements
for ( var i = 0; ret[i]; i++ ) {
// Grab the tag name being searched for
var tag = m[1] == "#" && m[3] ? m[3] : m[1] != "" || m[0] == "" ? "*" : m[2];
// Handle IE7 being really dumb about <object>s
if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" )
tag = "param";
r = jQuery.merge( r, ret[i].getElementsByTagName( tag ));
}
// It's faster to filter by class and be done with it
if ( m[1] == "." )
r = jQuery.classFilter( r, m[2] );
// Same with ID filtering
if ( m[1] == "#" ) {
var tmp = [];
// Try to find the element with the ID
for ( var i = 0; r[i]; i++ )
if ( r[i].getAttribute("id") == m[2] ) {
tmp = [ r[i] ];
break;
}
r = tmp;
}
ret = r;
}
t = t.replace( re2, "" );
}
}
// If a selector string still exists
if ( t ) {
// Attempt to filter it
var val = jQuery.filter(t,r);
ret = r = val.r;
t = jQuery.trim(val.t);
}
}
// An error occurred with the selector;
// just return an empty set instead
if ( t )
ret = [];
// Remove the root context
if ( ret && context == ret[0] )
ret.shift();
// And combine the results
done = jQuery.merge( done, ret );
return done;
},
classFilter: function(r,m,not){
m = " " + m + " ";
var tmp = [];
for ( var i = 0; r[i]; i++ ) {
var pass = (" " + r[i].className + " ").indexOf( m ) >= 0;
if ( !not && pass || not && !pass )
tmp.push( r[i] );
}
return tmp;
},
filter: function(t,r,not) {
var last;
// Look for common filter expressions
while ( t && t != last ) {
last = t;
var p = jQuery.parse, m;
for ( var i = 0; p[i]; i++ ) {
m = p[i].exec( t );
if ( m ) {
// Remove what we just matched
t = t.substring( m[0].length );
m[2] = m[2].replace(/\/g, "");
break;
}
}
if ( !m )
break;
// :not() is a special case that can be optimized by
// keeping it out of the expression list
if ( m[1] == ":" && m[2] == "not" )
// optimize if only one selector found (most common case)
r = isSimple.test( m[3] ) ?
jQuery.filter(m[3], r, true).r :
jQuery( r ).not( m[3] );
// We can get a big speed boost by filtering by class here
else if ( m[1] == "." )
r = jQuery.classFilter(r, m[2], not);
else if ( m[1] == "[" ) {
var tmp = [], type = m[3];
for ( var i = 0, rl = r.length; i < rl; i++ ) {
var a = r[i], z = a[ jQuery.props[m[2]] || m[2] ];
if ( z == null || /href|src|selected/.test(m[2]) )
z = jQuery.attr(a,m[2]) || '';
if ( (type == "" && !!z ||
type == "=" && z == m[5] ||
type == "!=" && z != m[5] ||
type == "^=" && z && !z.indexOf(m[5]) ||
type == "$=" && z.substr(z.length - m[5].length) == m[5] ||
(type == "*=" || type == "~=") && z.indexOf(m[5]) >= 0) ^ not )
tmp.push( a );
}
r = tmp;
// We can get a speed boost by handling nth-child here
} else if ( m[1] == ":" && m[2] == "nth-child" ) {
var merge = {}, tmp = [],
// parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
m[3] == "even" && "2n" || m[3] == "odd" && "2n+1" ||
!/\D/.test(m[3]) && "0n+" + m[3] || m[3]),
// calculate the numbers (first)n+(last) including if they are negative
first = (test[1] + (test[2] || 1)) - 0, last = test[3] - 0;
// loop through all the elements left in the jQuery object
for ( var i = 0, rl = r.length; i < rl; i++ ) {
var node = r[i], parentNode = node.parentNode, id = jQuery.data(parentNode);
if ( !merge[id] ) {
var c = 1;
for ( var n = parentNode.firstChild; n; n = n.nextSibling )
if ( n.nodeType == 1 )
n.nodeIndex = c++;
merge[id] = true;
}
var add = false;
if ( first == 0 ) {
if ( node.nodeIndex == last )
add = true;
} else if ( (node.nodeIndex - last) % first == 0 && (node.nodeIndex - last) / first >= 0 )
add = true;
if ( add ^ not )
tmp.push( node );
}
r = tmp;
// Otherwise, find the expression to execute
} else {
var fn = jQuery.expr[ m[1] ];
if ( typeof fn == "object" )
fn = fn[ m[2] ];
if ( typeof fn == "string" )
fn = eval("false||function(a,i){return " + fn + ";}");
// Execute it against the current filter
r = jQuery.grep( r, function(elem, i){
return fn(elem, i, m, r);
}, not );
}
}
// Return an array of filtered elements (r)
// and the modified expression string (t)
return { r: r, t: t };
},
dir: function( elem, dir ){
var matched = [];
var cur = elem[dir];
while ( cur && cur != document ) {
if ( cur.nodeType == 1 )
matched.push( cur );
cur = cur[dir];
}
return matched;
},
nth: function(cur,result,dir,elem){
result = result || 1;
var num = 0;
for ( ; cur; cur = cur[dir] )
if ( cur.nodeType == 1 && ++num == result )
break;
return cur;
},
sibling: function( n, elem ) {
var r = [];
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType == 1 && (!elem || n != elem) )
r.push( n );
}
return r;
}
});
/*
* A number of helper functions used for managing events.
* Many of the ideas behind this code orignated from
* Dean Edwards' addEvent library.
*/
jQuery.event = {
// Bind an event to an element
// Original by Dean Edwards
add: function(elem, types, handler, data) {
if ( elem.nodeType == 3 || elem.nodeType == 8 )
return;
// For whatever reason, IE has trouble passing the window object
// around, causing it to be cloned in the process
if ( jQuery.browser.msie && elem.setInterval != undefined )
elem = window;
// Make sure that the function being executed has a unique ID
if ( !handler.guid )
handler.guid = this.guid++;
// if data is passed, bind to handler
if( data != undefined ) {
// Create temporary function pointer to original handler
var fn = handler;
// Create unique handler function, wrapped around original handler
handler = function() {
// Pass arguments and context to original handler
return fn.apply(this, arguments);
};
// Store data in unique handler
handler.data = data;
// Set the guid of unique handler to the same of original handler, so it can be removed
handler.guid = fn.guid;
}
// Init the element's event structure
var events = jQuery.data(elem, "events") || jQuery.data(elem, "events", {}),
handle = jQuery.data(elem, "handle") || jQuery.data(elem, "handle", function(){
// returned undefined or false
var val;
// Handle the second event of a trigger and when
// an event is called after a page has unloaded
if ( typeof jQuery == "undefined" || jQuery.event.triggered )
return val;
val = jQuery.event.handle.apply(arguments.callee.elem, arguments);
return val;
});
// Add elem as a property of the handle function
// This is to prevent a memory leak with non-native
// event in IE.
handle.elem = elem;
// Handle multiple events seperated by a space
// jQuery(...).bind("mouseover mouseout", fn);
jQuery.each(types.split(/\s+/), function(index, type) {
// Namespaced event handlers
var parts = type.split(".");
type = parts[0];
handler.type = parts[1];
// Get the current list of functions bound to this event
var handlers = events[type];
// Init the event handler queue
if (!handlers) {
handlers = events[type] = {};
// Check for a special event handler
// On
文件压缩包下载：http://jishu.hao513.com/downloads/div_right_float.rar
-----------------------------------------------------------------------------------------
index.html 代码如下：
-----------------------------------------------------------------------------------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>任意位置浮动固定层</title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="jquery.floatDiv.js"></script>
</head>
<body>
<div style="height:1500px;">任意位置浮动固定层</div>
</body>
</html>
-----------------------------------------------------------------------------------------
jquery.floatDiv.js 代码如下：
-----------------------------------------------------------------------------------------
/////////////////////////////////////////////////////////////////////////
// 主要调用代码，以下代码可直接剪帖到HTML页面调用
/////////////////////////////////////////////////////////////////////////
//以下输出的是固定层的内容，是为了使本JS可同时在多个页面进行包含使用
//如果不需要多页面包含显示相同内容，可将以下DIV放到html页面里去
document.write("<div id="test" style=" width: 300px; height: 200px; line-height:200px; text-align:center; padding:2px; color:white; background-color: #666; border:1px #000 solid;">这是固定在右下角的层</div>");
$(function(){
$("#test").floatdiv(); //在此省略了参数，默认浮动在右下角
});
/////////////////////////////////////////////////////////////////////////
// 以下是函数，不需要修改
/////////////////////////////////////////////////////////////////////////
/*任意位置浮动固定层*/
/*说明：可以让指定的层浮动到网页上的任何位置，当滚动条滚动时它会保持在当前位置不变，不会产生闪动*/
/*调用：$("#id").floatdiv(); //无参数调用，默认浮动在右下角
2 内置固定位置浮动，调用方法
$("#id").floatdiv("rightbottom");//右下角
$("#id").floatdiv("leftbottom");//左下角
$("#id").floatdiv("rightbottom");//右下角
$("#id").floatdiv("lefttop");//左上角
$("#id").floatdiv("righttop");//右上角
$("#id").floatdiv("middle");//居中
另外新添加了四个新的固定位置方法
middletop（居中置顶）、middlebottom（居中置低）、leftmiddle、rightmiddle
3 自定义位置浮动
$("#id").floatdiv({left:"10px",top:"10px"});
以上参数，设置浮动层在left 10个像素,top 10个像素的位置
*/
jQuery.fn.floatdiv=function(location){
//判断浏览器版本
var isIE6=false;
var Sys = {};
var ua = navigator.userAgent.toLowerCase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] : 0;
if(Sys.ie && Sys.ie=="6.0"){
isIE6=true;
}
var windowWidth,windowHeight;//窗口的高和宽
//取得窗口的高和宽
if (self.innerHeight) {
windowWidth=self.innerWidth;
windowHeight=self.innerHeight;
}else if (document.documentElement&&document.documentElement.clientHeight) {
windowWidth=document.documentElement.clientWidth;
windowHeight=document.documentElement.clientHeight;
} else if (document.body) {
windowWidth=document.body.clientWidth;
windowHeight=document.body.clientHeight;
}
return this.each(function(){
var loc;//层的绝对定位位置
var wrap=$("<div></div>");
var top=-1;
if(location==undefined || location.constructor == String){
switch(location){
case("rightbottom")://右下角
loc={right:"0px",bottom:"0px"};
break;
case("leftbottom")://左下角
loc={left:"0px",bottom:"0px"};
break;
case("lefttop")://左上角
loc={left:"0px",top:"0px"};
top=0;
break;
case("righttop")://右上角
loc={right:"0px",top:"0px"};
top=0;
break;
case("middletop")://居中置顶
loc={left:windowWidth/2-$(this).width()/2+"px",top:"0px"};
top=0;
break;
case("middlebottom")://居中置低
loc={left:windowWidth/2-$(this).width()/2+"px",bottom:"0px"};
break;
case("leftmiddle")://左边居中
loc={left:"0px",top:windowHeight/2-$(this).height()/2+"px"};
top=windowHeight/2-$(this).height()/2;
break;
case("rightmiddle")://右边居中
loc={right:"0px",top:windowHeight/2-$(this).height()/2+"px"};
top=windowHeight/2-$(this).height()/2;
break;
case("middle")://居中
var l=0;//居左
var t=0;//居上
l=windowWidth/2-$(this).width()/2;
t=windowHeight/2-$(this).height()/2;
top=t;
loc={left:l+"px",top:t+"px"};
break;
default://默认为右下角
location="rightbottom";
loc={right:"0px",bottom:"0px"};
break;
}
}else{
loc=location;
alert(loc.bottom);
var str=loc.top;
//判断top是否为空
if (typeof(str)!= 'undefined'){
str=str.replace("px","");
top=str;
}
}
/* 兼容IE6 */
if(isIE6){
if (top>=0)
{
wrap=$("<div style="top:expression(documentElement.scrollTop+"+top+");"></div>");
}else{
wrap=$("<div style="top:expression(documentElement.scrollTop+documentElement.clientHeight-this.offsetHeight);"></div>");
}
}
$("body").append(wrap);
wrap.css(loc).css({position:"fixed",z_index:"999"});
if (isIE6)
{
wrap.css("position","absolute");
//没有加这个的话，ie6使用表达式时就会发生跳动现象
//如果HTML页面使用了背景图片，以下代码可能会导致原背景图片无效，请将bg_img_url改为背景图片的路径
$("body").css("background-attachment","fixed").css("background-image","url(bg_img_url)");
}
//将要固定的层添加到固定层里
$(this).appendTo(wrap);
});
};
//如果您的html页面使用到了别的jquery.js，而在此可以不包含本jquery.js文件（如果测试运行正常的话），如果由于jquery.js的不完全相同，而导致某些莫名其妙的JS错误，而又无法修正，在不影响页面功能正常使用的情况下，可使用以下代码进行屏蔽JS的错误输出
window.onerror = function() { return true; } //屏蔽JS的错误显示
-----------------------------------------------------------------------------------------
jquery.js 代码如下：
-----------------------------------------------------------------------------------------
(function(){
/*
* jQuery 1.2.3 - New Wave Javascript
*
* Copyright (c) 2008 John Resig (jquery.com)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2008-02-06 00:21:25 -0500 (Wed, 06 Feb 2008) $
* $Rev: 4663 $
*/
// Map over jQuery in case of overwrite
if ( window.jQuery )
var _jQuery = window.jQuery;
var jQuery = window.jQuery = function( selector, context ) {
// The jQuery object is actually just the init constructor 'enhanced'
return new jQuery.prototype.init( selector, context );
};
// Map over the $ in case of overwrite
if ( window.$ )
var _$ = window.$;
// Map the jQuery namespace to the '$' one
window.$ = jQuery;
// A simple way to check for HTML strings or ID strings
// (both of which we optimize for)
var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/;
// Is it a simple selector
var isSimple = /^.[^:#\[\.]*$/;
jQuery.fn = jQuery.prototype = {
init: function( selector, context ) {
// Make sure that a selection was provided
selector = selector || document;
// Handle $(DOMElement)
if ( selector.nodeType ) {
this[0] = selector;
this.length = 1;
return this;
// Handle HTML strings
} else if ( typeof selector == "string" ) {
// Are we dealing with HTML string or an ID?
var match = quickExpr.exec( selector );
// Verify a match, and that no context was specified for #id
if ( match && (match[1] || !context) ) {
// HANDLE: $(html) -> $(array)
if ( match[1] )
selector = jQuery.clean( [ match[1] ], context );
// HANDLE: $("#id")
else {
var elem = document.getElementById( match[3] );
// Make sure an element was located
if ( elem )
// Handle the case where IE and Opera return items
// by name instead of ID
if ( elem.id != match[3] )
return jQuery().find( selector );
// Otherwise, we inject the element directly into the jQuery object
else {
this[0] = elem;
this.length = 1;
return this;
}
else
selector = [];
}
// HANDLE: $(expr, [context])
// (which is just equivalent to: $(content).find(expr)
} else
return new jQuery( context ).find( selector );
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) )
return new jQuery( document )[ jQuery.fn.ready ? "ready" : "load" ]( selector );
return this.setArray(
// HANDLE: $(array)
selector.constructor == Array && selector ||
// HANDLE: $(arraylike)
// Watch for when an array-like object, contains DOM nodes, is passed in as the selector
(selector.jquery || selector.length && selector != window && !selector.nodeType && selector[0] != undefined && selector[0].nodeType) && jQuery.makeArray( selector ) ||
// HANDLE: $(*)
[ selector ] );
},
// The current version of jQuery being used
jquery: "1.2.3",
// The number of elements contained in the matched element set
size: function() {
return this.length;
},
// The number of elements contained in the matched element set
length: 0,
// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
return num == undefined ?
// Return a 'clean' array
jQuery.makeArray( this ) :
// Return just the object
this[ num ];
},
// Take an array of elements and push it onto the stack
// (returning the new matched element set)
pushStack: function( elems ) {
// Build a new jQuery matched element set
var ret = jQuery( elems );
// Add the old object onto the stack (as a reference)
ret.prevObject = this;
// Return the newly-formed element set
return ret;
},
// Force the current matched set of elements to become
// the specified array of elements (destroying the stack in the process)
// You should use pushStack() in order to do this, but maintain the stack
setArray: function( elems ) {
// Resetting the length to 0, then using the native Array push
// is a super-fast way to populate an object with array-like properties
this.length = 0;
Array.prototype.push.apply( this, elems );
return this;
},
// Execute a callback for every element in the matched set.
// (You can seed the arguments with an array of args, but this is
// only used internally.)
each: function( callback, args ) {
return jQuery.each( this, callback, args );
},
// Determine the position of an element within
// the matched set of elements
index: function( elem ) {
var ret = -1;
// Locate the position of the desired element
this.each(function(i){
if ( this == elem )
ret = i;
});
return ret;
},
attr: function( name, value, type ) {
var options = name;
// Look for the case where we're accessing a style value
if ( name.constructor == String )
if ( value == undefined )
return this.length && jQuery[ type || "attr" ]( this[0], name ) || undefined;
else {
options = {};
options[ name ] = value;
}
// Check to see if we're setting style values
return this.each(function(i){
// Set all the styles
for ( name in options )
jQuery.attr(
type ?
this.style :
this,
name, jQuery.prop( this, options[ name ], type, i, name )
);
});
},
css: function( key, value ) {
// ignore negative width and height values
if ( (key == 'width' || key == 'height') && parseFloat(value) < 0 )
value = undefined;
return this.attr( key, value, "curCSS" );
},
text: function( text ) {
if ( typeof text != "object" && text != null )
return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
var ret = "";
jQuery.each( text || this, function(){
jQuery.each( this.childNodes, function(){
if ( this.nodeType != 8 )
ret += this.nodeType != 1 ?
this.nodeValue :
jQuery.fn.text( [ this ] );
});
});
return ret;
},
wrapAll: function( html ) {
if ( this[0] )
// The elements to wrap the target around
jQuery( html, this[0].ownerDocument )
.clone()
.insertBefore( this[0] )
.map(function(){
var elem = this;
while ( elem.firstChild )
elem = elem.firstChild;
return elem;
})
.append(this);
return this;
},
wrapInner: function( html ) {
return this.each(function(){
jQuery( this ).contents().wrapAll( html );
});
},
wrap: function( html ) {
return this.each(function(){
jQuery( this ).wrapAll( html );
});
},
append: function() {
return this.domManip(arguments, true, false, function(elem){
if (this.nodeType == 1)
this.appendChild( elem );
});
},
prepend: function() {
return this.domManip(arguments, true, true, function(elem){
if (this.nodeType == 1)
this.insertBefore( elem, this.firstChild );
});
},
before: function() {
return this.domManip(arguments, false, false, function(elem){
this.parentNode.insertBefore( elem, this );
});
},
after: function() {
return this.domManip(arguments, false, true, function(elem){
this.parentNode.insertBefore( elem, this.nextSibling );
});
},
end: function() {
return this.prevObject || jQuery( [] );
},
find: function( selector ) {
var elems = jQuery.map(this, function(elem){
return jQuery.find( selector, elem );
});
return this.pushStack( /[^+>] [^+>]/.test( selector ) || selector.indexOf("..") > -1 ?
jQuery.unique( elems ) :
elems );
},
clone: function( events ) {
// Do the clone
var ret = this.map(function(){
if ( jQuery.browser.msie && !jQuery.isXMLDoc(this) ) {
// IE copies events bound via attachEvent when
// using cloneNode. Calling detachEvent on the
// clone will also remove the events from the orignal
// In order to get around this, we use innerHTML.
// Unfortunately, this means some modifications to
// attributes in IE that are actually only stored
// as properties will not be copied (such as the
// the name attribute on an input).
var clone = this.cloneNode(true),
container = document.createElement("div");
container.appendChild(clone);
return jQuery.clean([container.innerHTML])[0];
} else
return this.cloneNode(true);
});
// Need to set the expando to null on the cloned set if it exists
// removeData doesn't work here, IE removes it from the original as well
// this is primarily for IE but the data expando shouldn't be copied over in any browser
var clone = ret.find("*").andSelf().each(function(){
if ( this[ expando ] != undefined )
this[ expando ] = null;
});
// Copy the events from the original to the clone
if ( events === true )
this.find("*").andSelf().each(function(i){
if (this.nodeType == 3)
return;
var events = jQuery.data( this, "events" );
for ( var type in events )
for ( var handler in events[ type ] )
jQuery.event.add( clone[ i ], type, events[ type ][ handler ], events[ type ][ handler ].data );
});
// Return the cloned set
return ret;
},
filter: function( selector ) {
return this.pushStack(
jQuery.isFunction( selector ) &&
jQuery.grep(this, function(elem, i){
return selector.call( elem, i );
}) ||
jQuery.multiFilter( selector, this ) );
},
not: function( selector ) {
if ( selector.constructor == String )
// test special case where just one selector is passed in
if ( isSimple.test( selector ) )
return this.pushStack( jQuery.multiFilter( selector, this, true ) );
else
selector = jQuery.multiFilter( selector, this );
var isArrayLike = selector.length && selector[selector.length - 1] !== undefined && !selector.nodeType;
return this.filter(function() {
return isArrayLike ? jQuery.inArray( this, selector ) < 0 : this != selector;
});
},
add: function( selector ) {
return !selector ? this : this.pushStack( jQuery.merge(
this.get(),
selector.constructor == String ?
jQuery( selector ).get() :
selector.length != undefined && (!selector.nodeName || jQuery.nodeName(selector, "form")) ?
selector : [selector] ) );
},
is: function( selector ) {
return selector ?
jQuery.multiFilter( selector, this ).length > 0 :
false;
},
hasClass: function( selector ) {
return this.is( "." + selector );
},
val: function( value ) {
if ( value == undefined ) {
if ( this.length ) {
var elem = this[0];
// We need to handle select boxes special
if ( jQuery.nodeName( elem, "select" ) ) {
var index = elem.selectedIndex,
values = [],
options = elem.options,
one = elem.type == "select-one";
// Nothing was selected
if ( index < 0 )
return null;
// Loop through all the selected options
for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
var option = options[ i ];
if ( option.selected ) {
// Get the specifc value for the option
value = jQuery.browser.msie && !option.attributes.value.specified ? option.text : option.value;
// We don't need an array for one selects
if ( one )
return value;
// Multi-Selects return an array
values.push( value );
}
}
return values;
// Everything else, we just grab the value
} else
return (this[0].value || "").replace(/\r/g, "");
}
return undefined;
}
return this.each(function(){
if ( this.nodeType != 1 )
return;
if ( value.constructor == Array && /radio|checkbox/.test( this.type ) )
this.checked = (jQuery.inArray(this.value, value) >= 0 ||
jQuery.inArray(this.name, value) >= 0);
else if ( jQuery.nodeName( this, "select" ) ) {
var values = value.constructor == Array ?
value :
[ value ];
jQuery( "option", this ).each(function(){
this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
jQuery.inArray( this.text, values ) >= 0);
});
if ( !values.length )
this.selectedIndex = -1;
} else
this.value = value;
});
},
html: function( value ) {
return value == undefined ?
(this.length ?
this[0].innerHTML :
null) :
this.empty().append( value );
},
replaceWith: function( value ) {
return this.after( value ).remove();
},
eq: function( i ) {
return this.slice( i, i + 1 );
},
slice: function() {
return this.pushStack( Array.prototype.slice.apply( this, arguments ) );
},
map: function( callback ) {
return this.pushStack( jQuery.map(this, function(elem, i){
return callback.call( elem, i, elem );
}));
},
andSelf: function() {
return this.add( this.prevObject );
},
data: function( key, value ){
var parts = key.split(".");
parts[1] = parts[1] ? "." + parts[1] : "";
if ( value == null ) {
var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
if ( data == undefined && this.length )
data = jQuery.data( this[0], key );
return data == null && parts[1] ?
this.data( parts[0] ) :
data;
} else
return this.trigger("setData" + parts[1] + "!", [parts[0], value]).each(function(){
jQuery.data( this, key, value );
});
},
removeData: function( key ){
return this.each(function(){
jQuery.removeData( this, key );
});
},
domManip: function( args, table, reverse, callback ) {
var clone = this.length > 1, elems;
return this.each(function(){
if ( !elems ) {
elems = jQuery.clean( args, this.ownerDocument );
if ( reverse )
elems.reverse();
}
var obj = this;
if ( table && jQuery.nodeName( this, "table" ) && jQuery.nodeName( elems[0], "tr" ) )
obj = this.getElementsByTagName("tbody")[0] || this.appendChild( this.ownerDocument.createElement("tbody") );
var scripts = jQuery( [] );
jQuery.each(elems, function(){
var elem = clone ?
jQuery( this ).clone( true )[0] :
this;
// execute all scripts after the elements have been injected
if ( jQuery.nodeName( elem, "script" ) ) {
scripts = scripts.add( elem );
} else {
// Remove any inner scripts for later evaluation
if ( elem.nodeType == 1 )
scripts = scripts.add( jQuery( "script", elem ).remove() );
// Inject the elements into the document
callback.call( obj, elem );
}
});
scripts.each( evalScript );
});
}
};
// Give the init function the jQuery prototype for later instantiation
jQuery.prototype.init.prototype = jQuery.prototype;
function evalScript( i, elem ) {
if ( elem.src )
jQuery.ajax({
url: elem.src,
async: false,
dataType: "script"
});
else
jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
if ( elem.parentNode )
elem.parentNode.removeChild( elem );
}
jQuery.extend = jQuery.fn.extend = function() {
// copy reference to target object
var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;
// Handle a deep copy situation
if ( target.constructor == Boolean ) {
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target != "object" && typeof target != "function" )
target = {};
// extend jQuery itself if only one argument is passed
if ( length == 1 ) {
target = this;
i = 0;
}
for ( ; i < length; i++ )
// Only deal with non-null/undefined values
if ( (options = arguments[ i ]) != null )
// Extend the base object
for ( var name in options ) {
// Prevent never-ending loop
if ( target === options[ name ] )
continue;
// Recurse if we're merging object values
if ( deep && options[ name ] && typeof options[ name ] == "object" && target[ name ] && !options[ name ].nodeType )
target[ name ] = jQuery.extend( target[ name ], options[ name ] );
// Don't bring in undefined values
else if ( options[ name ] != undefined )
target[ name ] = options[ name ];
}
// Return the modified object
return target;
};
var expando = "jQuery" + (new Date()).getTime(), uuid = 0, windowData = {};
// exclude the following css properties to add px
var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
jQuery.extend({
noConflict: function( deep ) {
window.$ = _$;
if ( deep )
window.jQuery = _jQuery;
return jQuery;
},
// See test/unit/core.js for details concerning this function.
isFunction: function( fn ) {
return !!fn && typeof fn != "string" && !fn.nodeName &&
fn.constructor != Array && /function/i.test( fn + "" );
},
// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
return elem.documentElement && !elem.body ||
elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
},
// Evalulates a script in a global context
globalEval: function( data ) {
data = jQuery.trim( data );
if ( data ) {
// Inspired by code by Andrea Giammarchi
// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
var head = document.getElementsByTagName("head")[0] || document.documentElement,
script = document.createElement("script");
script.type = "text/javascript";
if ( jQuery.browser.msie )
script.text = data;
else
script.appendChild( document.createTextNode( data ) );
head.appendChild( script );
head.removeChild( script );
}
},
nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
},
cache: {},
data: function( elem, name, data ) {
elem = elem == window ?
windowData :
elem;
var id = elem[ expando ];
// Compute a unique ID for the element
if ( !id )
id = elem[ expando ] = ++uuid;
// Only generate the data cache if we're
// trying to access or manipulate it
if ( name && !jQuery.cache[ id ] )
jQuery.cache[ id ] = {};
// Prevent overriding the named cache with undefined values
if ( data != undefined )
jQuery.cache[ id ][ name ] = data;
// Return the named cache data, or the ID for the element
return name ?
jQuery.cache[ id ][ name ] :
id;
},
removeData: function( elem, name ) {
elem = elem == window ?
windowData :
elem;
var id = elem[ expando ];
// If we want to remove a specific section of the element's data
if ( name ) {
if ( jQuery.cache[ id ] ) {
// Remove the section of cache data
delete jQuery.cache[ id ][ name ];
// If we've removed all the data, remove the element's cache
name = "";
for ( name in jQuery.cache[ id ] )
break;
if ( !name )
jQuery.removeData( elem );
}
// Otherwise, we want to remove all of the element's data
} else {
// Clean up the element expando
try {
delete elem[ expando ];
} catch(e){
// IE has trouble directly removing the expando
// but it's ok with using removeAttribute
if ( elem.removeAttribute )
elem.removeAttribute( expando );
}
// Completely remove the data cache
delete jQuery.cache[ id ];
}
},
// args is for internal usage only
each: function( object, callback, args ) {
if ( args ) {
if ( object.length == undefined ) {
for ( var name in object )
if ( callback.apply( object[ name ], args ) === false )
break;
} else
for ( var i = 0, length = object.length; i < length; i++ )
if ( callback.apply( object[ i ], args ) === false )
break;
// A special, fast, case for the most common use of each
} else {
if ( object.length == undefined ) {
for ( var name in object )
if ( callback.call( object[ name ], name, object[ name ] ) === false )
break;
} else
for ( var i = 0, length = object.length, value = object[0];
i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
}
return object;
},
prop: function( elem, value, type, i, name ) {
// Handle executable functions
if ( jQuery.isFunction( value ) )
value = value.call( elem, i );
// Handle passing in a number to a CSS property
return value && value.constructor == Number && type == "curCSS" && !exclude.test( name ) ?
value + "px" :
value;
},
className: {
// internal only, use addClass("class")
add: function( elem, classNames ) {
jQuery.each((classNames || "").split(/\s+/), function(i, className){
if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
elem.className += (elem.className ? " " : "") + className;
});
},
// internal only, use removeClass("class")
remove: function( elem, classNames ) {
if (elem.nodeType == 1)
elem.className = classNames != undefined ?
jQuery.grep(elem.className.split(/\s+/), function(className){
return !jQuery.className.has( classNames, className );
}).join(" ") :
"";
},
// internal only, use is(".class")
has: function( elem, className ) {
return jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
}
},
// A method for quickly swapping in/out CSS properties to get correct calculations
swap: function( elem, options, callback ) {
var old = {};
// Remember the old values, and insert the new ones
for ( var name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
callback.call( elem );
// Revert the old values
for ( var name in options )
elem.style[ name ] = old[ name ];
},
css: function( elem, name, force ) {
if ( name == "width" || name == "height" ) {
var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];
function getWH() {
val = name == "width" ? elem.offsetWidth : elem.offsetHeight;
var padding = 0, border = 0;
jQuery.each( which, function() {
padding += parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
border += parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
});
val -= Math.round(padding + border);
}
if ( jQuery(elem).is(":visible") )
getWH();
else
jQuery.swap( elem, props, getWH );
return Math.max(0, val);
}
return jQuery.curCSS( elem, name, force );
},
curCSS: function( elem, name, force ) {
var ret;
// A helper method for determining if an element's values are broken
function color( elem ) {
if ( !jQuery.browser.safari )
return false;
var ret = document.defaultView.getComputedStyle( elem, null );
return !ret || ret.getPropertyValue("color") == "";
}
// We need to handle opacity special in IE
if ( name == "opacity" && jQuery.browser.msie ) {
ret = jQuery.attr( elem.style, "opacity" );
return ret == "" ?
"1" :
ret;
}
// Opera sometimes will give the wrong display answer, this fixes it, see #2037
if ( jQuery.browser.opera && name == "display" ) {
var save = elem.style.outline;
elem.style.outline = "0 solid black";
elem.style.outline = save;
}
// Make sure we're using the right name for getting the float value
if ( name.match( /float/i ) )
name = styleFloat;
if ( !force && elem.style && elem.style[ name ] )
ret = elem.style[ name ];
else if ( document.defaultView && document.defaultView.getComputedStyle ) {
// Only "float" is needed here
if ( name.match( /float/i ) )
name = "float";
name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
var getComputedStyle = document.defaultView.getComputedStyle( elem, null );
if ( getComputedStyle && !color( elem ) )
ret = getComputedStyle.getPropertyValue( name );
// If the element isn't reporting its values properly in Safari
// then some display: none elements are involved
else {
var swap = [], stack = [];
// Locate all of the parent display: none elements
for ( var a = elem; a && color(a); a = a.parentNode )
stack.unshift(a);
// Go through and make them visible, but in reverse
// (It would be better if we knew the exact display type that they had)
for ( var i = 0; i < stack.length; i++ )
if ( color( stack[ i ] ) ) {
swap[ i ] = stack[ i ].style.display;
stack[ i ].style.display = "block";
}
// Since we flip the display style, we have to handle that
// one special, otherwise get the value
ret = name == "display" && swap[ stack.length - 1 ] != null ?
"none" :
( getComputedStyle && getComputedStyle.getPropertyValue( name ) ) || "";
// Finally, revert the display styles back
for ( var i = 0; i < swap.length; i++ )
if ( swap[ i ] != null )
stack[ i ].style.display = swap[ i ];
}
// We should always get a number back from opacity
if ( name == "opacity" && ret == "" )
ret = "1";
} else if ( elem.currentStyle ) {
var camelCase = name.replace(/\-(\w)/g, function(all, letter){
return letter.toUpperCase();
});
ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
// From the awesome hack by Dean Edwards
// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
// If we're not dealing with a regular pixel number
// but a number that has a weird ending, we need to convert it to pixels
if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) {
// Remember the original values
var style = elem.style.left, runtimeStyle = elem.runtimeStyle.left;
// Put in the new values to get a computed value out
elem.runtimeStyle.left = elem.currentStyle.left;
elem.style.left = ret || 0;
ret = elem.style.pixelLeft + "px";
// Revert the changed values
elem.style.left = style;
elem.runtimeStyle.left = runtimeStyle;
}
}
return ret;
},
clean: function( elems, context ) {
var ret = [];
context = context || document;
// !context.createElement fails in IE with an error but returns typeof 'object'
if (typeof context.createElement == 'undefined')
context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
jQuery.each(elems, function(i, elem){
if ( !elem )
return;
if ( elem.constructor == Number )
elem = elem.toString();
// Convert html string into DOM nodes
if ( typeof elem == "string" ) {
// Fix "XHTML"-style tags in all browsers
elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){
return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
all :
front + "></" + tag + ">";
});
// Trim whitespace, otherwise indexOf won't work as expected
var tags = jQuery.trim( elem ).toLowerCase(), div = context.createElement("div");
var wrap =
// option or optgroup
!tags.indexOf("<opt") &&
[ 1, "<select multiple='multiple'>", "</select>" ] ||
!tags.indexOf("<leg") &&
[ 1, "<fieldset>", "</fieldset>" ] ||
tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
[ 1, "<table>", "</table>" ] ||
!tags.indexOf("<tr") &&
[ 2, "<table><tbody>", "</tbody></table>" ] ||
// <thead> matched above
(!tags.indexOf("<td") || !tags.indexOf("<th")) &&
[ 3, "<table><tbody><tr>", "</tr></tbody></table>" ] ||
!tags.indexOf("<col") &&
[ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ] ||
// IE can't serialize <link> and <script> tags normally
jQuery.browser.msie &&
[ 1, "div<div>", "</div>" ] ||
[ 0, "", "" ];
// Go to html and back, then peel off extra wrappers
div.innerHTML = wrap[1] + elem + wrap[2];
// Move to the right depth
while ( wrap[0]-- )
div = div.lastChild;
// Remove IE's autoinserted <tbody> from table fragments
if ( jQuery.browser.msie ) {
// String was a <table>, *may* have spurious <tbody>
var tbody = !tags.indexOf("<table") && tags.indexOf("<tbody") < 0 ?
div.firstChild && div.firstChild.childNodes :
// String was a bare <thead> or <tfoot>
wrap[1] == "<table>" && tags.indexOf("<tbody") < 0 ?
div.childNodes :
[];
for ( var j = tbody.length - 1; j >= 0 ; --j )
if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length )
tbody[ j ].parentNode.removeChild( tbody[ j ] );
// IE completely kills leading whitespace when innerHTML is used
if ( /^\s/.test( elem ) )
div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild );
}
elem = jQuery.makeArray( div.childNodes );
}
if ( elem.length === 0 && (!jQuery.nodeName( elem, "form" ) && !jQuery.nodeName( elem, "select" )) )
return;
if ( elem[0] == undefined || jQuery.nodeName( elem, "form" ) || elem.options )
ret.push( elem );
else
ret = jQuery.merge( ret, elem );
});
return ret;
},
attr: function( elem, name, value ) {
// don't set attributes on text and comment nodes
if (!elem || elem.nodeType == 3 || elem.nodeType == 8)
return undefined;
var fix = jQuery.isXMLDoc( elem ) ?
{} :
jQuery.props;
// Safari mis-reports the default selected property of a hidden option
// Accessing the parent's selectedIndex property fixes it
if ( name == "selected" && jQuery.browser.safari )
elem.parentNode.selectedIndex;
// Certain attributes only work when accessed via the old DOM 0 way
if ( fix[ name ] ) {
if ( value != undefined )
elem[ fix[ name ] ] = value;
return elem[ fix[ name ] ];
} else if ( jQuery.browser.msie && name == "style" )
return jQuery.attr( elem.style, "cssText", value );
else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName( elem, "form" ) && (name == "action" || name == "method") )
return elem.getAttributeNode( name ).nodeValue;
// IE elem.getAttribute passes even for style
else if ( elem.tagName ) {
if ( value != undefined ) {
// We can't allow the type property to be changed (since it causes problems in IE)
if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode )
throw "type property can't be changed";
// convert the value to a string (all browsers do this but IE) see #1070
elem.setAttribute( name, "" + value );
}
if ( jQuery.browser.msie && /href|src/.test( name ) && !jQuery.isXMLDoc( elem ) )
return elem.getAttribute( name, 2 );
return elem.getAttribute( name );
// elem is actually elem.style ... set the style
} else {
// IE actually uses filters for opacity
if ( name == "opacity" && jQuery.browser.msie ) {
if ( value != undefined ) {
// IE has trouble with opacity if it does not have layout
// Force it by setting the zoom level
elem.zoom = 1;
// Set the alpha filter to set the opacity
elem.filter = (elem.filter || "").replace( /alpha\([^)]*\)/, "" ) +
(parseFloat( value ).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
}
return elem.filter && elem.filter.indexOf("opacity=") >= 0 ?
(parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() :
"";
}
name = name.replace(/-([a-z])/ig, function(all, letter){
return letter.toUpperCase();
});
if ( value != undefined )
elem[ name ] = value;
return elem[ name ];
}
},
trim: function( text ) {
return (text || "").replace( /^\s+|\s+$/g, "" );
},
makeArray: function( array ) {
var ret = [];
// Need to use typeof to fight Safari childNodes crashes
if ( typeof array != "array" )
for ( var i = 0, length = array.length; i < length; i++ )
ret.push( array[ i ] );
else
ret = array.slice( 0 );
return ret;
},
inArray: function( elem, array ) {
for ( var i = 0, length = array.length; i < length; i++ )
if ( array[ i ] == elem )
return i;
return -1;
},
merge: function( first, second ) {
// We have to loop this way because IE & Opera overwrite the length
// expando of getElementsByTagName
// Also, we need to make sure that the correct elements are being returned
// (IE returns comment nodes in a '*' query)
if ( jQuery.browser.msie ) {
for ( var i = 0; second[ i ]; i++ )
if ( second[ i ].nodeType != 8 )
first.push( second[ i ] );
} else
for ( var i = 0; second[ i ]; i++ )
first.push( second[ i ] );
return first;
},
unique: function( array ) {
var ret = [], done = {};
try {
for ( var i = 0, length = array.length; i < length; i++ ) {
var id = jQuery.data( array[ i ] );
if ( !done[ id ] ) {
done[ id ] = true;
ret.push( array[ i ] );
}
}
} catch( e ) {
ret = array;
}
return ret;
},
grep: function( elems, callback, inv ) {
var ret = [];
// Go through the array, only saving the items
// that pass the validator function
for ( var i = 0, length = elems.length; i < length; i++ )
if ( !inv && callback( elems[ i ], i ) || inv && !callback( elems[ i ], i ) )
ret.push( elems[ i ] );
return ret;
},
map: function( elems, callback ) {
var ret = [];
// Go through the array, translating each of the items to their
// new value (or values).
for ( var i = 0, length = elems.length; i < length; i++ ) {
var value = callback( elems[ i ], i );
if ( value !== null && value != undefined ) {
if ( value.constructor != Array )
value = [ value ];
ret = ret.concat( value );
}
}
return ret;
}
});
var userAgent = navigator.userAgent.toLowerCase();
// Figure out what browser is being used
jQuery.browser = {
version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [])[1],
safari: /webkit/.test( userAgent ),
opera: /opera/.test( userAgent ),
msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
};
var styleFloat = jQuery.browser.msie ?
"styleFloat" :
"cssFloat";
jQuery.extend({
// Check to see if the W3C box model is being used
boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
props: {
"for": "htmlFor",
"class": "className",
"float": styleFloat,
cssFloat: styleFloat,
styleFloat: styleFloat,
innerHTML: "innerHTML",
className: "className",
value: "value",
disabled: "disabled",
checked: "checked",
readonly: "readOnly",
selected: "selected",
maxlength: "maxLength",
selectedIndex: "selectedIndex",
defaultValue: "defaultValue",
tagName: "tagName",
nodeName: "nodeName"
}
});
jQuery.each({
parent: function(elem){return elem.parentNode;},
parents: function(elem){return jQuery.dir(elem,"parentNode");},
next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
children: function(elem){return jQuery.sibling(elem.firstChild);},
contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
}, function(name, fn){
jQuery.fn[ name ] = function( selector ) {
var ret = jQuery.map( this, fn );
if ( selector && typeof selector == "string" )
ret = jQuery.multiFilter( selector, ret );
return this.pushStack( jQuery.unique( ret ) );
};
});
jQuery.each({
appendTo: "append",
prependTo: "prepend",
insertBefore: "before",
insertAfter: "after",
replaceAll: "replaceWith"
}, function(name, original){
jQuery.fn[ name ] = function() {
var args = arguments;
return this.each(function(){
for ( var i = 0, length = args.length; i < length; i++ )
jQuery( args[ i ] )[ original ]( this );
});
};
});
jQuery.each({
removeAttr: function( name ) {
jQuery.attr( this, name, "" );
if (this.nodeType == 1)
this.removeAttribute( name );
},
addClass: function( classNames ) {
jQuery.className.add( this, classNames );
},
removeClass: function( classNames ) {
jQuery.className.remove( this, classNames );
},
toggleClass: function( classNames ) {
jQuery.className[ jQuery.className.has( this, classNames ) ? "remove" : "add" ]( this, classNames );
},
remove: function( selector ) {
if ( !selector || jQuery.filter( selector, [ this ] ).r.length ) {
// Prevent memory leaks
jQuery( "*", this ).add(this).each(function(){
jQuery.event.remove(this);
jQuery.removeData(this);
});
if (this.parentNode)
this.parentNode.removeChild( this );
}
},
empty: function() {
// Remove element nodes and prevent memory leaks
jQuery( ">*", this ).remove();
// Remove any remaining nodes
while ( this.firstChild )
this.removeChild( this.firstChild );
}
}, function(name, fn){
jQuery.fn[ name ] = function(){
return this.each( fn, arguments );
};
});
jQuery.each([ "Height", "Width" ], function(i, name){
var type = name.toLowerCase();
jQuery.fn[ type ] = function( size ) {
// Get window width or height
return this[0] == window ?
// Opera reports document.body.client[Width/Height] properly in both quirks and standards
jQuery.browser.opera && document.body[ "client" + name ] ||
// Safari reports inner[Width/Height] just fine (Mozilla and Opera include scroll bar widths)
jQuery.browser.safari && window[ "inner" + name ] ||
// Everyone else use document.documentElement or document.body depending on Quirks vs Standards mode
document.compatMode == "CSS1Compat" && document.documentElement[ "client" + name ] || document.body[ "client" + name ] :
// Get document width or height
this[0] == document ?
// Either scroll[Width/Height] or offset[Width/Height], whichever is greater
Math.max(
Math.max(document.body["scroll" + name], document.documentElement["scroll" + name]),
Math.max(document.body["offset" + name], document.documentElement["offset" + name])
) :
// Get or set width or height on the element
size == undefined ?
// Get width or height on the element
(this.length ? jQuery.css( this[0], type ) : null) :
// Set the width or height on the element (default to pixels if value is unitless)
this.css( type, size.constructor == String ? size : size + "px" );
};
});
var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ?
"(?:[\w*_-]|\.)" :
"(?:[\w\u0128-\uFFFF*_-]|\.)",
quickChild = new RegExp("^>\s*(" + chars + "+)"),
quickID = new RegExp("^(" + chars + "+)(#)(" + chars + "+)"),
quickClass = new RegExp("^([#.]?)(" + chars + "*)");
jQuery.extend({
expr: {
"": function(a,i,m){return m[2]=="*"||jQuery.nodeName(a,m[2]);},
"#": function(a,i,m){return a.getAttribute("id")==m[2];},
":": {
// Position Checks
lt: function(a,i,m){return i<m[3]-0;},
gt: function(a,i,m){return i>m[3]-0;},
nth: function(a,i,m){return m[3]-0==i;},
eq: function(a,i,m){return m[3]-0==i;},
first: function(a,i){return i==0;},
last: function(a,i,m,r){return i==r.length-1;},
even: function(a,i){return i%2==0;},
odd: function(a,i){return i%2;},
// Child Checks
"first-child": function(a){return a.parentNode.getElementsByTagName("*")[0]==a;},
"last-child": function(a){return jQuery.nth(a.parentNode.lastChild,1,"previousSibling")==a;},
"only-child": function(a){return !jQuery.nth(a.parentNode.lastChild,2,"previousSibling");},
// Parent Checks
parent: function(a){return a.firstChild;},
empty: function(a){return !a.firstChild;},
// Text Check
contains: function(a,i,m){return (a.textContent||a.innerText||jQuery(a).text()||"").indexOf(m[3])>=0;},
// Visibility
visible: function(a){return "hidden"!=a.type&&jQuery.css(a,"display")!="none"&&jQuery.css(a,"visibility")!="hidden";},
hidden: function(a){return "hidden"==a.type||jQuery.css(a,"display")=="none"||jQuery.css(a,"visibility")=="hidden";},
// Form attributes
enabled: function(a){return !a.disabled;},
disabled: function(a){return a.disabled;},
checked: function(a){return a.checked;},
selected: function(a){return a.selected||jQuery.attr(a,"selected");},
// Form elements
text: function(a){return "text"==a.type;},
radio: function(a){return "radio"==a.type;},
checkbox: function(a){return "checkbox"==a.type;},
file: function(a){return "file"==a.type;},
password: function(a){return "password"==a.type;},
submit: function(a){return "submit"==a.type;},
image: function(a){return "image"==a.type;},
reset: function(a){return "reset"==a.type;},
button: function(a){return "button"==a.type||jQuery.nodeName(a,"button");},
input: function(a){return /input|select|textarea|button/i.test(a.nodeName);},
// :has()
has: function(a,i,m){return jQuery.find(m[3],a).length;},
// :header
header: function(a){return /h\d/i.test(a.nodeName);},
// :animated
animated: function(a){return jQuery.grep(jQuery.timers,function(fn){return a==fn.elem;}).length;}
}
},
// The regular expressions that power the parsing engine
parse: [
// Match: [@value='test'], [@foo]
/^(\[) *@?([\w-]+) *([!*$^~=]*) *('?"?)(.*?)\4 *\]/,
// Match: :contains('foo')
/^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/,
// Match: :even, :last-chlid, #id, .class
new RegExp("^([:.#]*)(" + chars + "+)")
],
multiFilter: function( expr, elems, not ) {
var old, cur = [];
while ( expr && expr != old ) {
old = expr;
var f = jQuery.filter( expr, elems, not );
expr = f.t.replace(/^\s*,\s*/, "" );
cur = not ? elems = f.r : jQuery.merge( cur, f.r );
}
return cur;
},
find: function( t, context ) {
// Quickly handle non-string expressions
if ( typeof t != "string" )
return [ t ];
// check to make sure context is a DOM element or a document
if ( context && context.nodeType != 1 && context.nodeType != 9)
return [ ];
// Set the correct context (if none is provided)
context = context || document;
// Initialize the search
var ret = [context], done = [], last, nodeName;
// Continue while a selector expression exists, and while
// we're no longer looping upon ourselves
while ( t && last != t ) {
var r = [];
last = t;
t = jQuery.trim(t);
var foundToken = false;
// An attempt at speeding up child selectors that
// point to a specific element tag
var re = quickChild;
var m = re.exec(t);
if ( m ) {
nodeName = m[1].toUpperCase();
// Perform our own iteration and filter
for ( var i = 0; ret[i]; i++ )
for ( var c = ret[i].firstChild; c; c = c.nextSibling )
if ( c.nodeType == 1 && (nodeName == "*" || c.nodeName.toUpperCase() == nodeName) )
r.push( c );
ret = r;
t = t.replace( re, "" );
if ( t.indexOf(" ") == 0 ) continue;
foundToken = true;
} else {
re = /^([>+~])\s*(\w*)/i;
if ( (m = re.exec(t)) != null ) {
r = [];
var merge = {};
nodeName = m[2].toUpperCase();
m = m[1];
for ( var j = 0, rl = ret.length; j < rl; j++ ) {
var n = m == "~" || m == "+" ? ret[j].nextSibling : ret[j].firstChild;
for ( ; n; n = n.nextSibling )
if ( n.nodeType == 1 ) {
var id = jQuery.data(n);
if ( m == "~" && merge[id] ) break;
if (!nodeName || n.nodeName.toUpperCase() == nodeName ) {
if ( m == "~" ) merge[id] = true;
r.push( n );
}
if ( m == "+" ) break;
}
}
ret = r;
// And remove the token
t = jQuery.trim( t.replace( re, "" ) );
foundToken = true;
}
}
// See if there's still an expression, and that we haven't already
// matched a token
if ( t && !foundToken ) {
// Handle multiple expressions
if ( !t.indexOf(",") ) {
// Clean the result set
if ( context == ret[0] ) ret.shift();
// Merge the result sets
done = jQuery.merge( done, ret );
// Reset the context
r = ret = [context];
// Touch up the selector string
t = " " + t.substr(1,t.length);
} else {
// Optimize for the case nodeName#idName
var re2 = quickID;
var m = re2.exec(t);
// Re-organize the results, so that they're consistent
if ( m ) {
m = [ 0, m[2], m[3], m[1] ];
} else {
// Otherwise, do a traditional filter check for
// ID, class, and element selectors
re2 = quickClass;
m = re2.exec(t);
}
m[2] = m[2].replace(/\/g, "");
var elem = ret[ret.length-1];
// Try to do a global search by ID, where we can
if ( m[1] == "#" && elem && elem.getElementById && !jQuery.isXMLDoc(elem) ) {
// Optimization for HTML document case
var oid = elem.getElementById(m[2]);
// Do a quick check for the existence of the actual ID attribute
// to avoid selecting by the name attribute in IE
// also check to insure id is a string to avoid selecting an element with the name of 'id' inside a form
if ( (jQuery.browser.msie||jQuery.browser.opera) && oid && typeof oid.id == "string" && oid.id != m[2] )
oid = jQuery('[@id="'+m[2]+'"]', elem)[0];
// Do a quick check for node name (where applicable) so
// that div#foo searches will be really fast
ret = r = oid && (!m[3] || jQuery.nodeName(oid, m[3])) ? [oid] : [];
} else {
// We need to find all descendant elements
for ( var i = 0; ret[i]; i++ ) {
// Grab the tag name being searched for
var tag = m[1] == "#" && m[3] ? m[3] : m[1] != "" || m[0] == "" ? "*" : m[2];
// Handle IE7 being really dumb about <object>s
if ( tag == "*" && ret[i].nodeName.toLowerCase() == "object" )
tag = "param";
r = jQuery.merge( r, ret[i].getElementsByTagName( tag ));
}
// It's faster to filter by class and be done with it
if ( m[1] == "." )
r = jQuery.classFilter( r, m[2] );
// Same with ID filtering
if ( m[1] == "#" ) {
var tmp = [];
// Try to find the element with the ID
for ( var i = 0; r[i]; i++ )
if ( r[i].getAttribute("id") == m[2] ) {
tmp = [ r[i] ];
break;
}
r = tmp;
}
ret = r;
}
t = t.replace( re2, "" );
}
}
// If a selector string still exists
if ( t ) {
// Attempt to filter it
var val = jQuery.filter(t,r);
ret = r = val.r;
t = jQuery.trim(val.t);
}
}
// An error occurred with the selector;
// just return an empty set instead
if ( t )
ret = [];
// Remove the root context
if ( ret && context == ret[0] )
ret.shift();
// And combine the results
done = jQuery.merge( done, ret );
return done;
},
classFilter: function(r,m,not){
m = " " + m + " ";
var tmp = [];
for ( var i = 0; r[i]; i++ ) {
var pass = (" " + r[i].className + " ").indexOf( m ) >= 0;
if ( !not && pass || not && !pass )
tmp.push( r[i] );
}
return tmp;
},
filter: function(t,r,not) {
var last;
// Look for common filter expressions
while ( t && t != last ) {
last = t;
var p = jQuery.parse, m;
for ( var i = 0; p[i]; i++ ) {
m = p[i].exec( t );
if ( m ) {
// Remove what we just matched
t = t.substring( m[0].length );
m[2] = m[2].replace(/\/g, "");
break;
}
}
if ( !m )
break;
// :not() is a special case that can be optimized by
// keeping it out of the expression list
if ( m[1] == ":" && m[2] == "not" )
// optimize if only one selector found (most common case)
r = isSimple.test( m[3] ) ?
jQuery.filter(m[3], r, true).r :
jQuery( r ).not( m[3] );
// We can get a big speed boost by filtering by class here
else if ( m[1] == "." )
r = jQuery.classFilter(r, m[2], not);
else if ( m[1] == "[" ) {
var tmp = [], type = m[3];
for ( var i = 0, rl = r.length; i < rl; i++ ) {
var a = r[i], z = a[ jQuery.props[m[2]] || m[2] ];
if ( z == null || /href|src|selected/.test(m[2]) )
z = jQuery.attr(a,m[2]) || '';
if ( (type == "" && !!z ||
type == "=" && z == m[5] ||
type == "!=" && z != m[5] ||
type == "^=" && z && !z.indexOf(m[5]) ||
type == "$=" && z.substr(z.length - m[5].length) == m[5] ||
(type == "*=" || type == "~=") && z.indexOf(m[5]) >= 0) ^ not )
tmp.push( a );
}
r = tmp;
// We can get a speed boost by handling nth-child here
} else if ( m[1] == ":" && m[2] == "nth-child" ) {
var merge = {}, tmp = [],
// parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
m[3] == "even" && "2n" || m[3] == "odd" && "2n+1" ||
!/\D/.test(m[3]) && "0n+" + m[3] || m[3]),
// calculate the numbers (first)n+(last) including if they are negative
first = (test[1] + (test[2] || 1)) - 0, last = test[3] - 0;
// loop through all the elements left in the jQuery object
for ( var i = 0, rl = r.length; i < rl; i++ ) {
var node = r[i], parentNode = node.parentNode, id = jQuery.data(parentNode);
if ( !merge[id] ) {
var c = 1;
for ( var n = parentNode.firstChild; n; n = n.nextSibling )
if ( n.nodeType == 1 )
n.nodeIndex = c++;
merge[id] = true;
}
var add = false;
if ( first == 0 ) {
if ( node.nodeIndex == last )
add = true;
} else if ( (node.nodeIndex - last) % first == 0 && (node.nodeIndex - last) / first >= 0 )
add = true;
if ( add ^ not )
tmp.push( node );
}
r = tmp;
// Otherwise, find the expression to execute
} else {
var fn = jQuery.expr[ m[1] ];
if ( typeof fn == "object" )
fn = fn[ m[2] ];
if ( typeof fn == "string" )
fn = eval("false||function(a,i){return " + fn + ";}");
// Execute it against the current filter
r = jQuery.grep( r, function(elem, i){
return fn(elem, i, m, r);
}, not );
}
}
// Return an array of filtered elements (r)
// and the modified expression string (t)
return { r: r, t: t };
},
dir: function( elem, dir ){
var matched = [];
var cur = elem[dir];
while ( cur && cur != document ) {
if ( cur.nodeType == 1 )
matched.push( cur );
cur = cur[dir];
}
return matched;
},
nth: function(cur,result,dir,elem){
result = result || 1;
var num = 0;
for ( ; cur; cur = cur[dir] )
if ( cur.nodeType == 1 && ++num == result )
break;
return cur;
},
sibling: function( n, elem ) {
var r = [];
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType == 1 && (!elem || n != elem) )
r.push( n );
}
return r;
}
});
/*
* A number of helper functions used for managing events.
* Many of the ideas behind this code orignated from
* Dean Edwards' addEvent library.
*/
jQuery.event = {
// Bind an event to an element
// Original by Dean Edwards
add: function(elem, types, handler, data) {
if ( elem.nodeType == 3 || elem.nodeType == 8 )
return;
// For whatever reason, IE has trouble passing the window object
// around, causing it to be cloned in the process
if ( jQuery.browser.msie && elem.setInterval != undefined )
elem = window;
// Make sure that the function being executed has a unique ID
if ( !handler.guid )
handler.guid = this.guid++;
// if data is passed, bind to handler
if( data != undefined ) {
// Create temporary function pointer to original handler
var fn = handler;
// Create unique handler function, wrapped around original handler
handler = function() {
// Pass arguments and context to original handler
return fn.apply(this, arguments);
};
// Store data in unique handler
handler.data = data;
// Set the guid of unique handler to the same of original handler, so it can be removed
handler.guid = fn.guid;
}
// Init the element's event structure
var events = jQuery.data(elem, "events") || jQuery.data(elem, "events", {}),
handle = jQuery.data(elem, "handle") || jQuery.data(elem, "handle", function(){
// returned undefined or false
var val;
// Handle the second event of a trigger and when
// an event is called after a page has unloaded
if ( typeof jQuery == "undefined" || jQuery.event.triggered )
return val;
val = jQuery.event.handle.apply(arguments.callee.elem, arguments);
return val;
});
// Add elem as a property of the handle function
// This is to prevent a memory leak with non-native
// event in IE.
handle.elem = elem;
// Handle multiple events seperated by a space
// jQuery(...).bind("mouseover mouseout", fn);
jQuery.each(types.split(/\s+/), function(index, type) {
// Namespaced event handlers
var parts = type.split(".");
type = parts[0];
handler.type = parts[1];
// Get the current list of functions bound to this event
var handlers = events[type];
// Init the event handler queue
if (!handlers) {
handlers = events[type] = {};
// Check for a special event handler
// On
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