JS实现的一种网页下拉菜单[网页特效]

dn001 2009-06-21 08:16:06

<script language="JavaScript"> // Flash Image Extension for Dreamwever ,by knowsky.com(tslxg@hotmail.com) nereidFadeObjects = new Object(); nereidFadeTimers = new Object(); function nereidFade(object, destOp, rate, delta){ if (!document.all) return if (object != "[object]"){ //do this so I can take a string too 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>  <div align="center"> <a href="http://www.knowsky.com/js" target="_blank"><img border="0" src="/img/link1.gif" onMouseOut=nereidFade(this,50,10,5) onMouseOver=nereidFade(this,100,10,5) style="FILTER: alpha(opacity=55)" width="88" height="31"></a> <br> <a href="http://www.knowsky.com" target="_blank"><img border="0" src="/img/link2.gif" onMouseOut=nereidFade(this,50,10,5) onMouseOver=nereidFade(this,100,10,5) style="FILTER: alpha(opacity=55)" width="88" height="31"></a> </div>