1 /**

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

     3  * All rights reserved.

     4  * This component and the accompanying materials are made available

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

     6  * which accompanies this distribution, and is available

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

     8  *

     9  * Initial Contributors:

    10  * Nokia Corporation - initial contribution.

    11  * 

    12  * Contributors:

    13  * 

    14  * Description:

    15  * 

    16  */

    17 

    18 ///////////////////////////////////////////////////////////////////////////////

    19 // Ajax utility calss to create XmlHttpRequest object

    20 function Ajax() 

    21 {

    22 	//	xmlHttpRequest object	

    23 	var request = null;

    24 

    25     // branch for native XMLHttpRequest object

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

    27     	try 

    28 		{

    29 			request = new XMLHttpRequest();

    30 			try

    31 			{

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

    33 				if(netscape.security.PrivilegeManager.enablePrivilege)

    34 				{

    35 					//	duplicate the function

    36 					request._open = request.open;

    37 					

    38 					//	redefine the function definition

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

    40 					{

    41 						try

    42 						{

    43 							// Enable Universal Browser Read

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

    45 

    46 							//	call the native XmlHttpRequest.open method

    47 							this._open(method, url, flag);

    48 						}catch(e)

    49 						{

    50 							//	call the native XmlHttpRequest.open method

    51 							this._open(method, url, flag);

    52 						}

    53 					};

    54 				}

    55 			}

    56 			catch(e)

    57 			{

    58 				//	eatup all exceptions

    59 			}

    60 		} 

    61 		catch(e) {

    62 			request = null;

    63         }

    64     // branch for IE/Windows ActiveX version

    65     } else if(window.ActiveXObject) {

    66        	try {

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

    68       	} catch(e) {

    69         	try {

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

    71         	} catch(e) {

    72           		alert('Failed to create XmlHttprequest');

    73 				return null;

    74         	}

    75 		}

    76     }

    77 	

    78 	return (request);

    79 }