一个模仿图片透明渐变做的表格颜色渐变效果 js脚本特效

<HTML>
<HEAD>
<TITLE>dancepower.cn</TITLE>
<SCRIPT language=JavaScript>
// Flash table Extension for Dreamwever ,by dio(diopex@sina.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>
</HEAD>
<BODY text=#000000 bgColor=#ffffff leftMargin=0 topMargin=0 marginheight="0"
marginwidth="0">
<TABLE height="100%" cellSpacing=0 cellPadding=0 width="100%" border=0>
<TBODY>
<TR>
    <TD align=center>
      <TABLE borderColor=#ffffff height=100 cellSpacing=1 cellPadding=1
      width=100 align=center bgColor=#000033 border=1>
        <TBODY>
        <TR align=center>
          <TD onmouseover=nereidFade(this,100,10,5)
          style="FILTER: alpha(opacity=70)" onmouseout=nereidFade(this,50,10,5)
          bgColor=#00ccff><FONT face=verdana color=#ffffff
size=1>dio</FONT></TD>
          <TD onmouseover=nereidFade(this,100,10,5)
          style="FILTER: alpha(opacity=70)" onmouseout=nereidFade(this,50,10,5)
          bgColor=#ff9900><FONT face=verdana color=#ffffff
        size=1>pex</FONT></TD></TR>
        <TR align=center>
          <TD onmouseover=nereidFade(this,100,10,5)
          style="FILTER: alpha(opacity=70)" onmouseout=nereidFade(this,50,10,5)
          bgColor=#ff3399><FONT face=verdana color=#ffffff
size=1>pex</FONT></TD>
          <TD onmouseover=nereidFade(this,100,10,5)
          style="FILTER: alpha(opacity=70)" onmouseout=nereidFade(this,50,10,5)
          bgColor=#33ff66><FONT face=verdana color=#ffffff
        size=1>dio</FONT></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></BODY></HTML>

PS：这是从别人那里转来的，觉得很漂亮，所以拿来了，好好学习下！