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<head>
<title></title>
</head>
<body>
<form id=aa name=aa>
<input type=button value="ͬÒâ(10)" id=a1 disabled="disabled">
</form>
</body>
</html>
<script>
var num=10;
window.setTimeout("aa()",1000);
function aa()
{
 num--;
 if(num==0)
 {
  document.aa.a1.value="ͬÒâ";
  document.aa.a1.disabled="";
  return;
 }
 document.aa.a1.value="ͬÒâ("+num+")";
    window.setTimeout("aa()",1000);
}
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