img1     = new Image(50,22);
img1.src = "images/button-home.png";
img2     = new Image(50,22);
img2.src = "images/button-home-on.png";
img3     = new Image(92,22);
img3.src = "images/button-request.png";
img4     = new Image(92,22);
img4.src = "images/button-request-on.png";
img5     = new Image(104,22);
img5.src = "images/button-register.png";
img6     = new Image(104,22);
img6.src = "images/button-register-on.png";
img7     = new Image(40,22);
img7.src = "images/button-faqs.png";
img8     = new Image(40,22);
img8.src = "images/button-faqs-on.png";
img9     = new Image(58,22);
img9.src = "images/button-support.png";
img10    = new Image(58,22);
img10.src = "images/button-support-on.png";
img11     = new Image(70,22);
img11.src = "images/button-contact.png";
img12    = new Image(70,22);
img12.src = "images/button-contact-on.png";



function swapimage(imgx, placeholder)  { 
 if (document.images) { 
   document.images[placeholder].src = eval(imgx + ".src");
 }
}