//    Licensed Materials - Property of IBM
//
//    IBM Cognos Products: ps
//
//    (C) Copyright IBM Corp. 2005, 2011
//
//    US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
// Copyright (C) 2008 Cognos Incorporated. All rights reserved.
// Cognos and the Cognos logo are trademarks of Cognos Incorporated.

var xmlHttpVersions = [
					"Msxml2.XMLHTTP.6.0", 
					"Msxml2.XMLHTTP.3.0",
					"Msxml2.XMLHTTP",
					"Microsoft.XMLHTTP"
					];

function findXMLHttpActiveXVersion() {
	if (window.ActiveXObject) {
		var i, l = this.xmlHttpVersions.length;
		for (i = 0; i < l; i++) {
			try {
				// Try and create the ActiveXObject for Internet Explorer, if it doesn't work, try again.
				var xmlhttp = new ActiveXObject(this.xmlHttpVersions[i]);
				if (xmlhttp) 
					return this.xmlHttpVersions[i];
			} catch (e) {
				// this ActiveX is not there, continue with next one in list
			} 
		}
	}
	
	return null;
}

var xmlHttpDefault = findXMLHttpActiveXVersion();

function getXMLHttpRequest() {
	if (xmlHttpDefault != null) 
		return new ActiveXObject(xmlHttpDefault);

	// Well if there is no ActiveXObject available it must be firefox, opera, or something else
	if (typeof XMLHttpRequest != 'undefined') {
		try {
			return new XMLHttpRequest();
		} catch (e) {
			alert(e);
		}
	}
	
	throw "No XMLHttpRequest object is available";
}