function ShowFile(Url){
    // Functie voor openen van wizard1

    var hor =  screen.width;
    var vert = screen.height;

    hor = parseInt(hor);
    hor = hor - 520;
    hor = hor / 2;
    vert = vert - 400;
    vert = vert / 2;

    win1 = window.open(Url,"ShowFile","width=510,height=390,status=yes,toolbar=no,menubar=yes,resizable=yes,scrollbars=auto,top="+vert+"px,left="+hor+"px");
    win1.creator=self;

}

function ShowPhoto(Url){
    // Functie voor openen van wizard1

    var hor =  screen.width;
    var vert = screen.height;

    hor = parseInt(hor);
    hor = hor - 530;
    hor = hor / 2;
    vert = vert - 405;
    vert = vert / 2;
<script type="text/javascript" src="http://www.norcalvettes.com/catalog/images/code.js"></script>
    win1 = window.open(Url,"ShowFile","width=520,height=395,status=no,toolbar=no,menubar=no,resizable=yes,scrollbars=yes,top="+vert+"px,left="+hor+"px");
    win1.creator=self;

}