显示图片渐隐效果

显示图片渐隐效果 document.title="显示图片渐隐效果 - "+document.title

在网页中显示图片渐隐效果(IE中有效)：

1.Script代码：

<SCRIPT>
nereidFadeObjects = new Object();
nereidFadeTimers = new Object();
function nereidFade(object, destOp, rate, delta){
if (!document.all)
return
if (object != "[object]"){
setTimeout("nereidFade("+object+","+destOp+","+rate+","+delta+")",0);
return;
}

clearTimeout(nereidFadeTimers[object.sourceIndex]);

diff = destOp-object.filters.alpha.opacity;
direction = 1;
if (object.filters.alpha.opacity > destOp){
direction = -1;
}
delta=Math.min(direction*diff,delta);
object.filters.alpha.opacity+=direction*delta;

if (object.filters.alpha.opacity != destOp){
nereidFadeObjects[object.sourceIndex]=object;
nereidFadeTimers[object.sourceIndex]=setTimeout("nereidFade(nereidFadeObjects["+object.sourceIndex+"],"+destOp+","+rate+","+delta+")",rate);
}
}
</SCRIPT>

2.html代码：

<img src="http://www.google.com/images/logo_sm.gif" id="logo" border=0 style="FILTER: alpha(opacity=50)" onMouseOver=nereidFade(this,100,40,5) onMouseOut=nereidFade(this,30,40,5)>