up你用的是asp
应该是:
<script language="javascript">
var major_version=parseInt(navigator.appVersion)
var full_version=parseFloat(navigator.appVersion)
var ie_start=navigator.appVersion.indexOf("MSIE")
if(ie_start!=-1){
var version_string=navigator.appVersion.substring(ie_start+5)
major_version=parseInt(version_string)
full_version=parseInt(version_string)
}
</script>