//**************************************************************************

//                           ajax_forumfunctions.js

//                            -------------------

//   begin                : Friday, Jan 13, 2006

//   copyright            : (C) 2006 alcaeus

//   email                : mods@alcaeus.org

//

//   $Id: ajax_forumfunctions.js,v 1.4 2006/04/18 20:59:05 alcaeus Exp $

//

//**************************************************************************



//**************************************************************************

//

//   This program is free software; you can redistribute it and/or modify

//   it under the terms of the GNU General Public License as published by

//   the Free Software Foundation; either version 2 of the License, or

//   (at your option) any later version.

//

//**************************************************************************





//

// Mark a forum as read

//

function AJAXMarkForum(forum_id)

{

	if (!ajax_core_defined || (forum_id == 0))

	{

		return true;

	}

	

	var url = 'ajax.' + phpEx;

	var params = 'mode=mark_forum';

	if (S_SID != '')

	{

		params += '&sid=' + S_SID;

	}

	params += '&' + POST_FORUM_URL + '=' + forum_id;

	return !loadXMLDoc(url, params, 'GET', 'mark_forum_change');

}



function mark_forum_change()

{

	//Check if the request is completed, if not, just skip over

	if (request.readyState == 4)

	{

		var result_code = AJAX_ERROR;

		var forum_id = '';

		var forumimage = '0';

		var imagetext = '0';

		var error_msg = '';

		//If the request wasn't successful, we just hide any information we have.

		if (request.status == 200)

		{

			var response = request.responseXML.documentElement;

			if (AJAX_DEBUG_RESULTS)

			{

				alert(request.responseText);

			}

			//Don't react if no valid response was received

			if (response != null)

			{

				result_code = getFirstTagValue('result', response);

				

				if (result_code == AJAX_MARK_FORUM)

				{

					forum_id = getFirstTagValue('forumid', response);

					forumimage = getFirstTagValue('forumimage', response);

					imagetext = getFirstTagValue('imagetext', response);

				}

				else

				{

					error_msg = getFirstTagValue('error_msg', response);

					if (AJAX_DEBUG_REQUEST_ERRORS)

					{

						alert('result_code: '+result_code+'; error: '+error_msg);

					}

				}

			}

		}

		

		AJAXFinishMarkForum(result_code, forum_id, forumimage, imagetext);

		delete request;

	}

}



function AJAXFinishMarkForum(result_code, forum_id, forumimage, imagetext)

{

	if (!ajax_core_defined || (result_code != AJAX_MARK_FORUM))

	{

		return;

	}

	

	var forum_image = getElementById('forumimage_'+forum_id);

	if (forum_image == null)

	{

		if (AJAX_DEBUG_HTML_ERRORS)

		{

			alert('AJAXMarkForum: some HTML elements could not be found');

		}

		return;

	}

	

	forum_image.setAttribute('src', forumimage, 'false');

	forum_image.setAttribute('alt', imagetext, 'false');

	forum_image.setAttribute('title', imagetext, 'false');

}