/**
* 
* Copyright (C) 2005 Matsuda Shota
* http://sgssweb.com/
* sgss@mac.com
*
* ------------------------------------------------------------------------
* 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.
* 
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
* ------------------------------------------------------------------------
*/

/*
2005-4-23
	- Event are no longer automatically assigned
2005-4-23
	- Now many replacements can be set.
2005-4-17
	- Packaged.
*/


/**
* @param object obj
*/
function RolloverController_activate(obj)
{
	if(RolloverController_validate(obj)) {
		obj.src = obj.activeimg.src;
	}
}

/**
* @param object obj
*/
function RolloverController_inactivate(obj)
{
	if(RolloverController_validate(obj)) {
		obj.src = obj.initsrc;
	}
}

function RolloverController_validate(obj)
{
	return (obj.initsrc != undefined && 
			obj.activeimg != undefined && 
			obj.activeimg.src != undefined)? true
										   : false;
}

/**
* @param object obj
* @param string regexp
* @param string replacement
*/
function RolloverController_preloadImages(obj, regexp, replacement)
{
	//avoid duplication of preload
	obj.onload = function() {};
	//store initial image src
	obj.initsrc = obj.src;
	//preload
	var replaced_str = obj.src;
	for(var i = 1; i < arguments.length - 1; i += 2) {
		replaced_str = replaced_str.replace(arguments[i], arguments[i + 1]);
	}
	obj.activeimg = new Image();
	obj.activeimg.src = replaced_str;
}

function RolloverController()
{
}

RolloverController.prototype.load = RolloverController_preloadImages;
RolloverController.prototype.activate = RolloverController_activate;
RolloverController.prototype.inactivate = RolloverController_inactivate;