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var xmlhttp;
//´´½¨XMLhttpRequest
function CreateXmlhttp()
{
try
{
if(window.ActiveXObject)
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
else
{
xmlhttp=new XMLHttpRequest();
}
}
catch(Error)
{
throw new Error("ÎÞ·¨´´½¨xmlHttpRequest");
}
}
//»ñȡʡ
window.onload=function(){
tick();
CreateXmlhttp();
xmlhttp.open("post","Help.aspx?action=true",true);
xmlhttp.onreadystatechange=SelectProvince;
xmlhttp.send(null);
}
//Ê¡µÄ»Øµ÷º¯Êý
function Se


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  var XMLHttpReq;
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<script>
function Save(){
xmlHttp=GetXmlHttpObject()
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