求帮忙改一段 JS

Question

<script>
var min=10;
var max=100;
var number=1;
function OnMouseOver(obj) {
if(obj.changing)
clearInterval(obj.changing);
obj.changing=setInterval("add("+obj.id+")", 10);
}
function OnMouseOut(obj) {
if(obj.changing)
clearInterval(obj.changing);
obj.changing=setInterval("sub("+obj.id+")", 10);
}
function add(obj) {
if(obj.filters.Alpha.Opacity > max) {
clearInterval(obj.changing);
obj.changing=false;
obj.filters.Alpha.Opacity = max;
}
else
obj.filters.Alpha.Opacity += number;
}
function sub(obj) {
if(obj.filters.Alpha.Opacity < min) {
clearInterval(obj.changing);
obj.changing=false;
obj.filters.Alpha.Opacity = min;
}
else
obj.filters.Alpha.Opacity += -number;
}
</script>
<img id="img1" src="u3228676-3.jpg" style="filter: Alpha(Opacity=10);" onmouseover="OnMouseOver(this)" onmouseout="OnMouseOut(this)">
<img id="img2" src="u3228676-3.jpg" style="filter: Alpha(Opacity=10);" onmouseover="OnMouseOver(this)" onmouseout="OnMouseOut(this)">这段 JS 似乎只能对 img 起作用, 对 div 好像不管用...
希望能让它支持 div, 另外也要支持非 IE 的浏览器...
谢谢大家...