//Ajax Function
var reqObj; //Creat Null Instence
//Run Ajax (string urladdress,bool IsAsy,string method,string parameters)
function DoRequest(url,isAsy,method,parStr)
{
reqObj = false;
if (window.XMLHttpRequest) //compatible Mozilla, Safari,...
{
reqObj = new XMLHttpRequest(); //Creat XMLHttpRequest Instance
if (reqObj.overrideMimeType) //if Mime Type is false ,then set MimeType 'text/xml'
{
reqObj.overrideMimeType('text/xml');
}
}
else if (window.ActiveXObject) //compatible IE
{
try
{
reqObj = new ActiveXObject("Msxml2.XMLHTTP"); //Creat XMLHttpRequest Instance
}
catch (e)
{
try
{
reqObj = new ActiveXObject("Microsoft.XMLHTTP"); //Creat XMLHttpRequest Instance
}
catch (e)
{}
}
}
//if reqObj is false,then alert warnning
if (!reqObj)
{
alert('Giving up :( Cannot create an XMLHTTP instance');
return false;
}
reqObj.onreadystatechange = GetRequest; //set onreadystatechange Function
reqObj.open(method, url, isAsy); //set open Function
reqObj.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); //set RequestHeader
reqObj.send(parStr); //do send and send parameters
}
//get Service Response information Function
function GetRequest()
{
//judge readystate information
if (reqObj.readyState == 4)
{
//judge status information
if (reqObj.status == 200)
{
Ajax(reqObj); //do custom Function at Ajax() and trans parameter reqObj
}
else
{
alert('There was a problem with the request.'+reqObj.status); //else alert warnning
}
}
}