if (document.images)
{
    
    modelbut02 = new Image;
    modelbut02.src = "images/modelbut02.gif";
    modelbut02o = new Image;
    modelbut02o.src = "images/modelbut02o.gif";
    
    modelbut04 = new Image;
    modelbut04.src = "images/modelbut04.gif";
    modelbut04o = new Image;
    modelbut04o.src = "images/modelbut04o.gif";
    
    modelbut07 = new Image;
    modelbut07.src = "images/modelbut07.gif";
    modelbut07o = new Image;
    modelbut07o.src = "images/modelbut07o.gif";
    
    modelbut08 = new Image;
    modelbut08.src = "images/modelbut08.gif";
    modelbut08o = new Image;
    modelbut08o.src = "images/modelbut08o.gif";
    
    modelbut09 = new Image;
    modelbut09.src = "images/modelbut09.gif";
    modelbut09o = new Image;
    modelbut09o.src = "images/modelbut09o.gif";
    
    modelbut10 = new Image;
    modelbut10.src = "images/modelbut10.gif";
    modelbut10o = new Image;
    modelbut10o.src = "images/modelbut10o.gif";
    
    modelbut11 = new Image;
    modelbut11.src = "images/modelbut11.gif";
    modelbut11o = new Image;
    modelbut11o.src = "images/modelbut11o.gif";
    
    modelbut12 = new Image;
    modelbut12.src = "images/modelbut12.gif";
    modelbut12o = new Image;
    modelbut12o.src = "images/modelbut12o.gif";
    
    modelbut13 = new Image;
    modelbut13.src = "images/modelbut13.gif";
    modelbut13o = new Image;
    modelbut13o.src = "images/modelbut13o.gif";
    
    modelbut14 = new Image;
    modelbut14.src = "images/modelbut14.gif";
    modelbut14o = new Image;
    modelbut14o.src = "images/modelbut14o.gif";
    
    modelbut15 = new Image;
    modelbut15.src = "images/modelbut15.gif";
    modelbut15o = new Image;
    modelbut15o.src = "images/modelbut15o.gif";
    
    modelbut77 = new Image;
    modelbut77.src = "images/modelbut77.gif";
    modelbut77o = new Image;
    modelbut77o.src = "images/modelbut77o.gif";
    
    function Over(name,name2){
       document.images[name].src=eval(name2+'.src');
    }
 }