if (document.images) {

     img00on = new Image();
     img00on.src = "../../img/bt_home_k2.gif";

     img16on = new Image();
     img16on.src = "../../img/bt_message_k2.gif";

     img17on = new Image();
     img17on.src = "../../img/bt_reply_k2.gif";

     img18on = new Image();
     img18on.src = "../../img/bt_product_k2.gif";

     img19on = new Image();
     img19on.src = "../../img/bt_business_k2.gif";

     img20on = new Image();
     img20on.src = "../../img/bt_any_k2.gif";

     img21on = new Image();
     img21on.src = "../../img/bt_letter_k2.gif";

     img22on = new Image();
     img22on.src = "../../img/bt_recipe_k2.gif";


 
     img00off = new Image();
     img00off.src = "../../img/bt_home_k1.gif";

     img16off = new Image();
     img16off.src = "../../img/bt_message_k1.gif";

     img17off = new Image();
     img17off.src = "../../img/bt_reply_k1.gif";

     img18off = new Image();
     img18off.src = "../../img/bt_product_k1.gif";

     img19off = new Image();
     img19off.src = "../../img/bt_business_k1.gif";

     img20off = new Image();
     img20off.src = "../../img/bt_any_k1.gif";

     img21off = new Image();
     img21off.src = "../../img/bt_letter_k1.gif";

     img22off = new Image();
     img22off.src = "../../img/bt_recipe_k1.gif";


   }

function imgOn(imgName) {
     if (document.images) {
         document[imgName].src = eval(imgName + "on.src");
   }
}

function imgOff(imgName) {
     if (document.images) {
         document[imgName].src = eval(imgName + "off.src");
   }
}

function openWindow() {
window.open("","cara_window",'toolbar=0,location=0,scrollbars=1,width=600,height=640,resizable=1,left=200,top=30');
}