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<?php
header("content-type: text/html;charset=gb2312");
?>
<script type="text/javascript" src="re.js"></script>
<form action="#" id='form1'>
Óû§Ãû:<input type="text" id="UserName" onblur="ck_name();">
<div id="regname"></div>
</form>
jsÄÚÈÝ
var xmlHttp=false;
try {
xmlHttp=new xmlHttpRequest();
}
catch (e) {
try {
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e) {
try {
xmlHttp=new ActiveXObject("Mircosoft.XMLHTTP");
}
catch (e) {
xmlHttp=false;
}
}
}
if (!xmlHttp) {
alert("ÎÞ·¨´´½¨XMLHttpRequest¶ÔÏó£¡");
}
function Trim(strSource){
return strSource.replace(/^\s*/,'').replace(/\s*$/,'');
}
function ck_name() {
var obj=Trim(document.getElementById("UserName").value);
var re=/^[\da-zA-Z]+$/;
var txt=document.getElementById("
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