image1= new Image();
 image1.src = "../buttons/b_04_01_line_a.gif";
 image1on = new Image();
 image1on.src = "../buttons/b_04_01_line_b.gif";
 image2= new Image();
 image2.src = "../buttons/b_04_02_pneu_a.gif";
 image2on = new Image();
 image2on.src = "../buttons/b_04_02_pneu_b.gif";


 image11= new Image();
 image11.src = "01_line_a.gif";
 image11on = new Image();
 image11on.src = "01_line_b.gif";



 function on(name)   {
         document[name].src = eval(name + "on.src");
 }
 function off(name)  {
         document[name].src = eval(name + ".src");
 }