// ******************************************************
// Script from Stefan Koch - Voodoo's Intro to JavaScript
//     http://rummelplatz.uni-mannheim.de/~skoch/js/ 
//       JS-book: http://www.dpunkt.de/javascript
//    You can use this code if you leave this message
// ******************************************************

// ok, we have a JavaScript browser
  var browserOK = false;
  var pics;

// JavaScript 1.1 browser - oh yes!
  browserOK = true;
  pics = new Array();


var objCount = 0; // number of (changing) images on web-page

function preload(name, first, second) {  

  // preload images and place them in an array

  if (browserOK) {     
    pics[objCount] = new Array(25);
    pics[objCount][0] = new Image();
    pics[objCount][0].src = first;
    pics[objCount][1] = new Image();
    pics[objCount][1].src = second;
    pics[objCount][2] = name;
    objCount++;
  }
}

function on(name){
  if (browserOK) {
     for (i = 0; i < objCount; i++) {
      if (document.images[pics[i][2]] != null)
        if (name != pics[i][2]) { 
          // set back all other pictures
          document.images[pics[i][2]].src = pics[i][0].src;
        } else {
           // show the second image because cursor moves across this image
           document.images[pics[i][2]].src = pics[i][1].src;
        }
    }
  }
}

function off(){
  if (browserOK) {
     for (i = 0; i < objCount; i++) {
      // set back all pictures
      if (document.images[pics[i][2]] != null) 
        document.images[pics[i][2]].src = pics[i][0].src;
    }
  }
}

// preload images - you have to specify which images should be preloaded
// and which Image-object on the wep-page they belong to (this is the first
// argument). Change this part if you want to use different images (of course
// you have to change the body part of the document as well)
// ADD THE NAMES OF YOUR IMAGES HERE

preload("link04","media/images/back_alt_04.gif", "media/images/back_alt_04-over.gif");
preload("link07","media/images/back_alt_07.gif", "media/images/back_alt_07-over.gif");
preload("link08","media/images/back_alt_08.gif", "media/images/back_alt_08-over.gif");
preload("link09","media/images/back_alt_09.gif", "media/images/back_alt_09-over.gif");
preload("link10","media/images/back_alt_10.gif", "media/images/back_alt_10-over.gif");
preload("link11","media/images/back_alt_11.gif", "media/images/back_alt_11-over.gif");
preload("link12","media/images/back_alt_12.gif", "media/images/back_alt_12-over.gif");
preload("link13","media/images/back_alt_13.gif", "media/images/back_alt_13-over.gif");
preload("link14","media/images/back_alt_14.gif", "media/images/back_alt_14-over.gif");
preload("link15","media/images/back_alt_15.gif", "media/images/back_alt_15-over.gif");
preload("link16","media/images/back_alt_16.gif", "media/images/back_alt_16-over.gif");
preload("link17","media/images/back_alt_17.gif", "media/images/back_alt_17-over.gif");
preload("link18","media/images/back_alt_18.gif", "media/images/back_alt_18-over.gif");
preload("link20","media/images/back_alt_20.gif", "");
preload("link21","media/giving.gif", "media/giving_over.gif");