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想通过改变滤镜实现炽热文字效果,为啥没反应?

jin522 发布于 2010-12-19 20:55, 627 次点击
程序代码:
<html>
<head>
<style type="text/css">
<!--

 #glowtext

 {filter:glow(color=red,strength=2;width:100%;}
-->
</style>
<script language="javascript">
function golwIt(which)
{
  if(document.all.glowtext[which].filters[0].strength==2)
   {document.all.golwtext[which].filters[0].strength=1;}
  else
   {document.all.glowtext[which].filters[0].strength=2;}
}
function golwIt2()
{
  if(document.all.glowtext.filters[0].strength==2)
   document.all.golwtext.filters[0].strength=1;
  else
   document.all.glowtext.filters[0].strength=2;
}
function startGlowing()
{
  if(document.all.glowtext&&glowtext.lenght)
  {
    for(i=0;i<glowtext.length;i++)
     setInterval("glowIt(i)",150);
  }
  else if(glowtext)
     setInterval("glowIt2()",150);
}
if(document.all)
window.onload=startGlowing;
</script>
</head>
<body>
<span id="glowtext" >我是中国人!</span>
</body>
</html>
想通过改变滤镜实现炽热文字效果,为啥没反应?
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