Opacity totally rewrites filter on IE

[Devign]

Element.Properties.opacity.set totally rewrites the filter, that way already written filters are removed (gray(), AlphaImageLoader?...)

this.style.filter = ...

Could it only edit the specific alpha filter?

Code example (none mooish) of how maintaining the other filters:

<script type="text/javascript">
var x;
onload=function () {
	x=document.getElementById("x");
	setTimeout(function () { setOpacity(30); },500);
	setTimeout(function () { setOpacity(80); },1000);
}
function setOpacity(i) {
	if (!x.filters.alpha) x.style.filter+="alpha(opacity="+i+")";
	else x.filters.alpha.opacity=i;
}
</script>

<div style="width:100px;height:100px;background-color:red;filter:gray()" id="x"></div>

Thanks.

[tomocchino]

this patch will be applied after the release of 1.2 when we can test it a little more