function createRequest(){
	var request = null;
	try{
		request = new ActiveXObject("Msxml2.XMLHTTP");
	}
	catch(e){
		try{
			request = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch(ee){
			request = null;
		}
	}
	if (!request && typeof XMLHttpRequest != "undefined"){
		try{
			request = new XMLHttpRequest();
		}
		catch(eee){
			window.status = "ÄúµÄä¯ÀÀÆ÷²»Ö§³ÖAjax";
			request = null;
		}
	}
	return request;
}

function ajaxGet(url){
	var request = createRequest();
	if (request != null){
		request.onreadystatechange = function(){
			if (request.readyState == 4 && request.responseText){
				eval(request.responseText);
			}
		};
		request.open("GET", url, true);
        request.send(null);
	}
}

function ajaxPost(url, data){
	var request = createRequest();
	if (request != null){
		request.onreadystatechange = function(){
			if (request.readyState == 4 && request.responseText){
				eval(request.responseText);
			}
		};
		request.open("POST", url, true);
		request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
        request.send(data);
	}
}