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JScript code:
<script language="javascript">
function remove(){
var nclass=document.getElementById("snclassid");
var op=nclass.getElementsByTagName("option");
for(i=0;i<nclass.options.length;i++){ //Óöµ½µÄÎÊÌâ´¦
nclass.removeChild(op[0]);
}
}
</script>
</head>
<body>
<select name="snclassid" id="snclassid" style="width:180px;">
<option name='1' value='1'>C#ÓïÑÔ</option>
<option name='1' value='2'>ASPÓïÑÔ</option>
<option name='1' value='3'>VBÓïÑÔ</option>
<option name='2' value='4'>Å·ÃÀÎÄѧ</option>
<option name='2' value='5'>ÑÇÖÞÎÄѧ</option>
<option name='3' value='6'>Êýѧ</option>
<option name='3' value='7'>ÎïÀí</option>
<option name='3' value='8'>¸ßµÈÊýѧ</option>
</select>
<input type="button" onclick="remove()" value="Çå¿Õ"/>
</body>
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<script language="javascript">
var ww = "\u00e7\u00e8";
alert(ww);
</script>
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