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js+div 隐藏显示层代码
<script language=javascript>

function toExit(){
var args=toExit.arguments;
var visible=args[0];
if(document.all){
  if(visible=="show")visible="visible";
  if(visible=="hide")visible="hidden";
  theObj=eval("document.all[""+args[1]+""]");
  if(theObj)theObj.style.visibility=visible;
  }

}    

</script>

style="HEIGHT: 80px; LEFT: 10px; POSITION: absolute; TOP: 10px; VISIBILITY: hidden; WIDTH: 180px; Z-INDEX: 1">
  width=180> 
                     
                       
                         
                           
                           
                                          color=#ffffff>欢迎来到javascript世界！这里有你意想不到奇妙效果！
                           
                           
                                          href="javascript：toExit("hide","div32")">关闭此层
                           
                           
                         
                       
                     
                     
                   
                 
打开隐藏层

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