if (document.images) {

	image1on = new Image();
	image1on.src = "images/nav-about-mo.gif";

	image2on = new Image();
	image2on.src = "images/nav-benefits-mo.gif";

	image3on = new Image();
	image3on.src = "images/nav-after-mo.gif";

	image4on = new Image();
	image4on.src = "images/nav-services-mo.gif";
	
	image5on = new Image();
	image5on.src = "images/nav-testimonials-mo.gif";
	
	image6on = new Image();
	image6on.src = "images/nav-contact-mo.gif";

<!--------------------------------------------------------------------------->
	
	image1off = new Image();
	image1off.src = "images/nav-about.gif";

	image2off = new Image();
	image2off.src = "images/nav-benefits.gif";

	image3off = new Image();
	image3off.src = "images/nav-after.gif";

	image4off = new Image();
	image4off.src = "images/nav-services.gif";
	
	image5off = new Image();
	image5off.src = "images/nav-testimonials.gif";
	
	image6off = new Image();
	image6off.src = "images/nav-contact.gif";

}
function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}