<script language="JavaScript">
  var browserOK = false;
  var pics;
</script>

<script language="JavaScript1.1">
  browserOK = true;
  pics = new Array();
</script>
<script language="JavaScript">


var objCount = 0; 

function preload(name, first, second) {  


  if (browserOK) {     
    pics[objCount] = new Array(3);
    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]) { 
          document.images[pics[i][2]].src = pics[i][0].src;
        } else {
           document.images[pics[i][2]].src = pics[i][1].src;
        }
    }
  }
}

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


preload("news", "news.jpg", "news_h.jpg");
preload("link2", "img2f.gif", "img2t.gif");
preload("link3", "img3f.gif", "img3t.gif");

</script>