//建立XmlHttp对象
var oAjaxHttp;
CreateAjaxHttp();
function CreateAjaxHttp(){

	try {
		oAjaxHttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch(e) {
		try {
			oAjaxHttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch(e2) {
			oAjaxHttp = false;
		}
	}

	if (!oAjaxHttp && typeof XMLHttpRequest != 'undefined') {
		oAjaxHttp = new XMLHttpRequest();
	}
}
//发送数据
function AjaxSend(parameters, sMethod)
{
	var sURL = "/Common/Submit.aspx";
	if (sMethod == "GET")
	{
		sURL += "?" + parameters
		parameters = null
	}
	oAjaxHttp.open(sMethod, sURL, true);
	oAjaxHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	oAjaxHttp.send(parameters);
	
	return true;
}
//返回数据成功后作相应操作
function AjaxChkStarus() {
   
	if (oAjaxHttp.readyState == 4) {
		DestroyObj($$("Loading"));
		if (oAjaxHttp.status == 200) {
			return true;
		}
		else {
			ShowDialog(oAjaxHttp.responseText);
		}
	}
}