function createXmlHttpRequestObject(){
	var xmlHttp;
	try{
		xmlHttp=new XMLHttpRequest();
	}
	catch(e){
		var XmlHttpVersions=new Array(
			"MSXML2.XMLHTTP.6.0",
			"MSXML2.XMLHTTP.5.0",
			"MSXML2.XMLHTTP.4.0",
			"MSXML2.XMLHTTP.3.0",
			"MSXML2.XMLHTTP",
			"Microsoft.XMLHTTP"
		);
		for( var i=0;i<XmlHttpVersions.length && !xmlHttp;i++){
			try{
				xmlHttp=new ActiveXObject(XmlHttpVersions[i]);
			}
			catch(e){}
		}
	}
	if(!xmlHttp){
		alert("error creating XMLHttpRequest object.");
	}
	else{
		return xmlHttp;
	}
 }

 var xmlHttp=createXmlHttpRequestObject();

function GetResult(userid){//alert(userid);
	if(userid==""){
		alert("ÇëÏȵǼ");return;
	}
	if(document.getElementById('result')){
		document.getElementById('result').innerHTML="";
	}//alert(document.getElementById('result').innerHTML);
	var url="getresult.php?userid="+userid;//alert(url);//return;
	xmlHttp.open('GET',url,false);
	xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	xmlHttp.onreadystatechange=function(){
		if(xmlHttp.readyState==4&&xmlHttp.status==200){
			var response=xmlHttp.responseText;//alert("response:"+response);//return false;
			if(document.getElementById('result')){
				document.getElementById('result').innerHTML=response;
			}
		}
	}
	xmlHttp.send(null);
}