图片渐变交换代码

<script>
var NowFrame = 1;
var MaxFrame = 3;
var bStart = 0;
function fnToggle() {
var next = NowFrame + 1;
if(next == MaxFrame+1)
{
NowFrame = MaxFrame;
next = 1;
}
if(bStart == 0)
{
bStart = 1;

setTimeout('fnToggle()', 3000);
return;
}
else
{
oTransContainer.filters[0].Apply();
document.images['oDIV'+next].style.display = "";
document.images['oDIV'+NowFrame].style.display = "none";
oTransContainer.filters[0].Play(duration=2);
if(NowFrame == MaxFrame)
NowFrame = 1;
else
NowFrame++;
} setTimeout('fnToggle()', 4000);
}
fnToggle();
</script><div id=oTransContainer style="FILTER: progid:DXImageTransform.Microsoft.Wipe(GradientSize=1.0, wipeStyle=0, motion='forward'); WIDTH: 190px; HEIGHT: 188px">
<a href="#"><img id=oDIV2 style="DISPLAY: none;" height=188 src=http://astro.lady.tom.com/images/yuki/caipiaozhanbu.gif width=190 border=0></a>
<a href="#"><img id=oDIV3 style="DISPLAY: none;" src=http://astro.lady.tom.com/images/yuki/5609.gif height=188 width=190 border=0></a>
<a href="#"><img id=oDIV1 style="DISPLAY: none;" height=188 src=http://astro.lady.tom.com/images/yuki/5610.gif width=190 border=0></a>
</div>