/*
 * JavaScript functions for creating rollover images in HTML.
 *
 * Copyright (C) 2002: Jens-Peter Schildt <jp@md-network.de>
 *
 *
 *   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.
 *
 *
 * Visit the md-network development page for up-to-date versions of
 * this file at: http://www.md-network.de/development/
 *
 *  Example:
 *
 *  <A HREF="/"
 *     onMouseOut="rolloverOff('referenz_name');"
 *     onMouseOver="rolloverOn('referenz_name');">
 *    <IMG SRC="pfad/zum/button/button_name.gif"
 *         BORDER="0" WIDTH="130" HEIGHT="20"
 *         ALT="Alternativtext" NAME="referenz_name"
 *         onLoad="rolloverLoad('referenz_name',
 *                              'pfad/zum/button/button_name_highlight.gif',
 *                              'pfad/zum/button/button_name.gif');">
 *  </A>
*/

rolloverImagesOn = new Array();
rolloverImagesOff = new Array();

function rolloverOn (name) {
  if (rolloverImagesOn[name]) {
    document.images[name].src = rolloverImagesOn[name].src;
  }
}

function rolloverOff(name) {
  if (rolloverImagesOff[name]) {
    document.images[name].src = rolloverImagesOff[name].src;
  }
}

function rolloverLoad (name, on, off) {
  rolloverImagesOn[name] = new Image();
  rolloverImagesOn[name].src = on;
  rolloverImagesOff[name] = new Image();
  rolloverImagesOff[name].src = off;
}