if(document.images) {
    pics = new Array();
    pics[01] = new Image();
    pics[01].src = "images/map-121iisley.jpg";
    pics[02] = new Image();
    pics[02].src = "images/map-71thornhill.jpg";
    pics[03] = new Image();
    pics[03].src = "images/map-10thornhill.jpg";
    pics[04] = new Image();
    pics[04].src = "images/map-55akerley.jpg";
    pics[05] = new Image();
    pics[05].src = "images/map-75akerley.jpg";
    pics[06] = new Image();
    pics[06].src = "images/map-95akerley.jpg";
    pics[07] = new Image();
    pics[07].src = "images/map-10vidito.jpg";
    pics[08] = new Image();
    pics[08].src = "images/map.jpg";
    pics[09] = new Image();
    pics[09].src = "images/map-wrightplace.jpg";
    pics[10] = new Image();
    pics[10].src = "images/btnprofile.png";
    pics[11] = new Image();
    pics[11].src = "images/btnprofileov.png";
  }
    function changer(from,to) {
    if(document.images) {
    document.images[from].src = pics[to].src;
    }
  }