/**

 * Copyright (c) 2009-2010 Symbian Foundation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Contributors:

 */

///////////////////////////////////////////////////////////////////////////////

// Ajax utility calss to create XmlHttpRequest object

function Ajax() 

{

	//	xmlHttpRequest object	

	var request = null;

    // branch for native XMLHttpRequest object

    if(window.XMLHttpRequest && !(window.ActiveXObject)) {

    	try 

		{

			request = new XMLHttpRequest();

			try

			{

				//	attach the Bypass code, if the browser is firefox

				if(netscape.security.PrivilegeManager.enablePrivilege)

				{

					//	duplicate the function

					request._open = request.open;

					//	redefine the function definition

					request.open = function(method, url, flag)

					{

						try

						{

							// Enable Universal Browser Read

							netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");

							//	call the native XmlHttpRequest.open method

							this._open(method, url, flag);

						}catch(e)

						{

							//	call the native XmlHttpRequest.open method

							this._open(method, url, flag);

						}

					};

				}

			}

			catch(e)

			{

				//	eatup all exceptions

			}

		} 

		catch(e) {

			request = null;

        }

    // branch for IE/Windows ActiveX version

    } else if(window.ActiveXObject) {

       	try {

        	request = new ActiveXObject("Msxml2.XMLHTTP");

      	} catch(e) {

        	try {

          		request = new ActiveXObject("Microsoft.XMLHTTP");

        	} catch(e) {

          		alert('Failed to create XmlHttprequest');

				return null;

        	}

		}

    }

	return (request);

}