if (document.images) {

  thumb1on = new Image();
  thumb1on.src = "images/hero-on.gif"

  thumb1Off = new Image();
  thumb1Off.src = "images/hero.gif"
  
  thumb2on = new Image();
  thumb2on.src = "images/knight-on.gif"

  thumb2Off = new Image();
  thumb2Off.src = "images/knight.gif"

  thumb3on = new Image();
  thumb3on.src = "images/soldier-on.gif"

  thumb3Off = new Image();
  thumb3Off.src = "images/soldier.gif"

  blankOff = new Image();
  blankOff.src = "images/model_hero.gif"

  blanka = new Image();
  blanka.src = "images/model_hero.gif"

  blankb = new Image();
  blankb.src = "images/model_knight.gif"

  blankc = new Image();
  blankc.src = "images/model_soldier.gif"
  
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}

function MM_preloadImages() { //v2.0
  if (document.images) {
    var imgFiles = MM_preloadImages.arguments;
    if (document.preloadArray==null) document.preloadArray = new Array();
    var i = document.preloadArray.length;
    with (document) for (var j=0; j<imgFiles.length; j++) if (imgFiles[j].charAt(0)!="#"){
      preloadArray[i] = new Image;
      preloadArray[i++].src = imgFiles[j];
  } }
}