robertbao's website

版权声明：本文可以任意转载，转载时请务必以超链接形式标明文章原始出处和作者署名及本版权声明。

用下面的代码可以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)>

3.可以自己测试一下效果，我这里就不显示了。