function wait_pls() { already_load=1; }
  already_load=0;
  already_stored=0;

  v=parseInt(navigator.appVersion.substring(0,1));

  function load(filename){
    image=new Image();
    image.src="images/"+filename+".gif";
    return image;
  }

  if (v>=3){
	shopb=load("shop_btn_n");shopbover=load("shop_btn_o");
	presb=load("presents_btn_n");presbover=load("presents_btn_o");
	actb=load("activity_btn_n");actbover=load("activity_btn_o");
	newsb=load("news_btn_n");newsbover=load("news_btn_o");
	markb=load("mark_btn_n");markbover=load("mark_btn_o");
  }

  function show(where,what){
   if (already_load == 1) {
    if (v>=3) {
      already_stored=1;
      stored=where;
      storedLocation=document.images[where].src;
      document.images[where].src=eval(what+".src");
    }  
   }
  }

  function hide(){
    if (already_load==1 && already_stored==1) {
     if (v>=3) document.images[stored].src=storedLocation;
    }  
  }