//-----------------------------------------------------------------------------
// Define some constants.
//-----------------------------------------------------------------------------

// Define a list of Microsoft XML HTTP ProgIDs.
var XMLHTTPREQUEST_MS_PROGIDS = new Array(
	"Msxml2.XMLHTTP.7.0",
	"Msxml2.XMLHTTP.6.0",
	"Msxml2.XMLHTTP.5.0",
	"Msxml2.XMLHTTP.4.0",
	"MSXML2.XMLHTTP.3.0",
	"MSXML2.XMLHTTP",
	"Microsoft.XMLHTTP"
);

// Define ready state constants.
var XMLHTTPREQUEST_READY_STATE_UNINITIALIZED = 0;
var XMLHTTPREQUEST_READY_STATE_LOADING       = 1;
var XMLHTTPREQUEST_READY_STATE_LOADED        = 2;
var XMLHTTPREQUEST_READY_STATE_INTERACTIVE   = 3;
var XMLHTTPREQUEST_READY_STATE_COMPLETED     = 4;

//-----------------------------------------------------------------------------
// Returns an XMLHttpRequest object.
//-----------------------------------------------------------------------------
function getXMLHttpRequest()
{
	var httpRequest = null;

	// Create the appropriate HttpRequest object for the browser.
	if (window.XMLHttpRequest != null)
		httpRequest = new window.XMLHttpRequest();
	else if (window.ActiveXObject != null)
	{
		// Must be IE, find the right ActiveXObject.
		var success = false;
		for (var i = 0; i < XMLHTTPREQUEST_MS_PROGIDS.length && !success; i++)
		{
			try
			{
				httpRequest = new ActiveXObject(XMLHTTPREQUEST_MS_PROGIDS[i]);
				success = true;
			}
			catch (ex)
			{}
		}
	}

	// Display an error if we couldn't create one.
	if (httpRequest == null)
		alert("Error in HttpRequest():\n\nCannot create an XMLHttpRequest object.");

	// Return it.
	return httpRequest;
}

var ajax = getXMLHttpRequest();

// USAGE
/*
var ajax = getXMLHttpRequest();
var randomnumber=Math.floor(Math.random()*1000);
var url = "refertofriend.aspx?t="+ randomnumber +"&email="+; 
//alert(url);
data='';
ajax.open("GET", url, false);
ajax.send(null);
try
{
	data = ajax.responseText;
	alert(data);
	//YOUR CODE
}
catch (ex)
{}
*/