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xmlhttp.onReadyStateChange = getResult;
xmlhttp.error=function(xmlhttp){alert(xmlhttp.responseText);}
xmlhttp.send(null);

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  alert(xmlhttp.readyState);
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{
alert("wrong");
msg="״̬Âë´íÎó!!";
showMsg(par,tag,msg);
}
}
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                                    PrintWriter out=response.getWriter();
out.print(" <html> <body>nothing </body> </html>");
out.flush();
out.close();
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