function DoCallbackGet(url, params, Ansyc){
	url = url + "?" + params;
	try{
		xmlRequest = new XMLHttpRequest();
	}catch(e){
		try{
			xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
		}catch(e){
			xmlRequest=false;
		}
	} 
	xmlRequest.open("GET", url, Ansyc);
	xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	xmlRequest.send(null);
	return xmlRequest;
}
function DoCallbackPost(url, params, Ansyc){//url不需加?
	try{
		xmlRequest = new XMLHttpRequest();
	}catch (e){
		try{
			xmlRequest = new ActiveXObject("Microsoft.XMLHTTP");
		}catch(e){
			xmlRequest=false;
		}
	} 
	xmlRequest.open("POST", url, Ansyc);
	xmlRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	xmlRequest.send(params);
	return xmlRequest;
}