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JavaScript配合CSS实现表格颜色渐变

相信大家都能看得懂的表格颜色渐变效果,而且带有缓冲效果,像FLASH动画一样平滑,这里你只需设定背景颜色就可以达到渐变的效果,其它的交给了Javascript去处理。现在如果你看到有些导航菜单使用这种效果的时候,你就不会再感到吃惊了,原来是如此的简单。
答案:<HTML>
<HEAD>
<TITLE>表格颜色渐变-http://www.zzzyk.com</TITLE>
<SCRIPT language=JavaScript> 
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>
</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=middle>
      <TABLE borderColor=#ffffff height=100 cellSpacing=1 cellPadding=1 
      width=100 align=center bgColor=#000033 border=1>
        <TBODY>
        <TR align=middle>
          <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=middle>
          <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>

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