function nahrajObrazky() {
menu_item_1 = new Image();
menu_item_1.src = "../img/menu/menu_item_1.jpg";

menu_item_2 = new Image();
menu_item_2.src = "../img/menu/menu_item_2.jpg";

menu_item_3 = new Image();
menu_item_3.src = "../img/menu/menu_item_3.jpg";

photo_on1 = new Image();
photo_on1.src = "../img/menu/photo_on1.jpg";

photo_on2 = new Image();
photo_on2.src = "../img/menu/photo_on2.jpg";

photo_on3 = new Image();
photo_on3.src = "../img/menu/photo_on3.jpg";

}