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<select name="sel" onselect="£¿£¿£¿" >
<option value="768">768Kbps</option>
<option value="512" selected>512Kbps</option>
<option value="384">384Kbps</option>
</select>
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<html>
<head>
<script>
function mm()
{
var i=document.frm1.select1.selectedIndex;
var address=document.frm1.select1.options[i].value;
document.location.href=address;
}
</script>
</head>
<body>
<form name="frm1">
<select name="select1" onchange="mm()">
<option selected>ÇëÑ¡Ôñ</option>
<option value="http://www.baidu.com">°Ù¶È</option>
<option value="http://www.google.com">google</option>
</select>
</form>
</body>
</html>
onchange!
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<form action="" method="post">
<div align="center">
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