<script language="javascript" type="text/javascript">
var b = window.b || {};
b.roll = function () {
var me = this;
setTimeout(function () {
me.x = document.getElementsByTagName("ul");
me.y = document.getElementsByTagName("li");
me.z = me.y.item(me.y.length - 1);
me.q = me.z.clientHeight;
me.z.style.opacity = 0;
me.z.style.filter = "alpha:(opacity=0)";
me.z.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + 0 + ")";
me.z.style.height = "0px";
me.x[0].insertBefore(me.z, me.y[0]);
me.t = 1;
me.c = 0
me.i = setInterval(function () {
me.t++;
me.z.style.height = Math.round(me.q * (me.t / 50) * (me.t / 50)) + "px";
if (me.t >= 50) {
clearInterval(me.i);
me.d = setInterval(function () {
me.c += 0.02
if ("\v" == "v") {
me.z.style.filter = "alpha:(opacity=" + me.c * 100 + ")";
me.z.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + me.c * 100 + ")";
}
me.z.style.opacity = me.c;
if (me.c >= 1) { clearInterval(me.d); }
}, 50)
}
}, 25)
b.roll();
}, 5000);
}
new b.roll();
</script>
有哪位高手能解释一下这段代码？
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