function Ajax(sUrl,sRecvTyp,sQueryString,oResultFunc) {
this.State=0;
this.Url = sUrl;
this.QueryString = sQueryString;
this.XmlHttp = this.createXMLHttpRequest();

if (this.XmlHttp == null) {
alert("error");
return;
}
var objxml = this.XmlHttp;
objxml.onreadystatechange = function (){Ajax.handleStateChange(objxml,sRecvTyp,oResultFunc)};
}

Ajax.prototype.createXMLHttpRequest = function() {
try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) {}
try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {}
try { return new XMLHttpRequest(); } catch(e) {}
return null;
}

Ajax.prototype.createQueryString = function () {
var queryString = this.QueryString;
return queryString;
}

Ajax.prototype.get = function () {
sUrl = this.Url;
var queryString = sUrl+"?timeStamp=" + new Date().getTime() + "&" + this.createQueryString();
this.XmlHttp.open("GET",queryString,true);	
this.XmlHttp.send(null);
}

Ajax.prototype.post = function() {
sUrl = this.Url;
var sUrl = sUrl + "?timeStamp=" + new Date().getTime();
var queryString = this.createQueryString();
this.XmlHttp.open("POST",sUrl,true);
this.XmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
this.XmlHttp.send(queryString);
}

Ajax.handleStateChange = function (XmlHttp,sRecvTyp,oResultFunc) {
this.State=XmlHttp.readyState;
if (XmlHttp.readyState == 4) {
if (XmlHttp.status == 200) {
oResultFunc(sRecvTyp?XmlHttp.responseXML:XmlHttp.responseText);
} else {
alert("您所请求的页面有异常。");
}
}
} 


function enmsg(str){
	
	str=str.replace(/([\u0080-\u00FF]+)/ig,
					function($1){
						var s="";
						var str=$1
						for(var i=0;i<str.length;i++){
							s+="&#"+str.charCodeAt(i)+";";
						}
						return s;
					}
				   );
	str=escape(str);
	return str;
}


function enmsg_utf8(str){
	//return encodeURI(str);
	if(typeof(str)=="string"){
		return encodeURI(str).replace(/&/g,"%26");
	}
	else{
		return str;
	}

}