var XMLHttpReq =false;
//??XML????
function createXMLHttpReqObj()
{		
	try{
		XMLHttpReq = new XMLHttpRequest();//Mozilla ???
	}catch(e){
				try{
				 XMLHttpReq = new ActiveXObject("Microsoft.XMLHTTP");// IE???
				}catch(e){
							XMLHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
						}  
 			 }
}

//???? reqUrl ??????? paramStr ????
function sendRequest(reqUrl)
{
	createXMLHttpReqObj();
	XMLHttpReq.open("post",reqUrl,false);
	XMLHttpReq.send(null);
	
	if(XMLHttpReq.readyState == 4)
	{
		if(XMLHttpReq.status == 0 || XMLHttpReq.status == 200)
		var result = XMLHttpReq.responseText;//?????????? 
		return result;
	}else{
	alert("????");
	}
}