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var url="Test.aspx?id=1"
xmlHttp.open("GET",url,false);
xmlHttp.onreadystatechange= function()
{
if (xmlHttp.readyState == 4)
{
alert(xmlHttp.responseText);
}
}
xmlHttp.setRequestHeader("Content-Type", "text/xml");
xmlHttp.setRequestHeader("charset", "gb2312");
xmlHttp.send(null);



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if (xmlHttp.readyState == 4)
{
if(xmlHttp.status==200) {
alert(xmlHttp.responseText);
}
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  var flag=0;
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