var browserOK = false;
   var pics;
   browserOK = true;
   pics = new Array();
   var objCount = 0; // kol-vo izobrazhenij na web-stranice
   function preload(name, first, second){// predvarit zagruzka izobrazhnij i razmeschenie ih v massive
                                         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]) {
                         // vernut' v ishodnoe sostoyanie vse drugie izobrazheniya
                         document.images[pics[i][2]].src = pics[i][0].src;
                                            } 
                     else {
                       // pokazat' 2uyu kartinku, poskol'ku kursor peresekaet dannoe izobrazhenie
                       document.images[pics[i][2]].src = pics[i][1].src;
                          }
                                          }

                        }

                     }

function off(){

if (browserOK) {

for (i = 0; i < objCount; i++) {

// vernut' v iskhod.sost. vse izobrazheniya

if (document.images[pics[i][2]] != null)

document.images[pics[i][2]].src = pics[i][0].src;

}

}

}

preload("link1", "bar1.gif", "bar1a.gif");

preload("link2", "bar2.gif", "bar2a.gif");

preload("link3", "bar3.gif", "bar3a.gif");

preload("link4", "bar4.gif", "bar4a.gif");

preload("link5", "bar5.gif", "bar5a.gif");


preload("link6", "zima1.gif", "zima1a.gif");

preload("link7", "zima2.gif", "zima2a.gif");