function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

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

var preloadFlag = false;
var preloadCache = new Array();
function preloadImages() {
  if (document.images) {
    preloadCache['home_link_over'] = newImage("/images/homepage/home_link-over.jpg");
    preloadCache['events_link_over'] = newImage("/images/homepage/events_link-over.jpg");
    preloadCache['momdad_link_over'] = newImage("/images/homepage/momdad_link-over.jpg");
    preloadCache['mary_link_over'] = newImage("/images/homepage/mary_link-over.jpg");
    preloadCache['jon_link_over'] = newImage("/images/homepage/jon_link-over.jpg");
    preloadCache['dave_link_over'] = newImage("/images/homepage/dave_link-over.jpg");
    preloadCache['nathan_link_over'] = newImage("/images/homepage/nathan_link-over.jpg");
    preloadCache['aaron_link_over'] = newImage("/images/homepage/aaron_link-over.jpg");
    preloadCache['mark_link_over'] = newImage("/images/homepage/mark_link-over.jpg");
    preloadCache['adam_link_over'] = newImage("/images/homepage/adam_link-over.jpg");

    preloadCache['home_link'] = newImage("/images/homepage/home_link.jpg");
    preloadCache['events_link'] = newImage("/images/homepage/events_link.jpg");
    preloadCache['momdad_link'] = newImage("/images/homepage/momdad_link.jpg");
    preloadCache['mary_link'] = newImage("/images/homepage/mary_link.jpg");
    preloadCache['jon_link'] = newImage("/images/homepage/jon_link.jpg");
    preloadCache['dave_link'] = newImage("/images/homepage/dave_link.jpg");
    preloadCache['nathan_link'] = newImage("/images/homepage/nathan_link.jpg");
    preloadCache['aaron_link'] = newImage("/images/homepage/aaron_link.jpg");
    preloadCache['mark_link'] = newImage("/images/homepage/mark_link.jpg");
    preloadCache['adam_link'] = newImage("/images/homepage/adam_link.jpg");
    preloadFlag = true;
  }
}