function Ajax(url,querySting) {
	var HttpRequest	= null;

	if(!url) {
		return;
	}

	if (window.XMLHttpRequest)	{
		HttpRequest	= new XMLHttpRequest();
	}
	else if (window.ActiveXObject)	{
		var libs = new Array('MSXML4','MSXML3','MSXML2','Microsoft');
		for (var i=0; i<libs.length; i++)		{
			try
			{
				HttpRequest = new ActiveXObject(libs[i]+".XMLHTTP");
				break;
			}
			catch (e)
			{
				continue;
			}
		}
	}
	if(HttpRequest == null) {alert("지원하지 않는 브라우저 입니다."); return;}

	HttpRequest.onreadystatechange = function ()	{
		if (HttpRequest.readyState == 4)	{
			if (HttpRequest.status == 200)	{ 
				resultFun(HttpRequest.responseText); 
			}
		}else	{
			//resultFun("ERROR");
		}
	}


	HttpRequest.open("POST", url, true);
	HttpRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	HttpRequest.send(querySting);
}