// JavaScript Document
if (document.images) 
{
   img1 = new Image();
   img2 = new Image();
   img3 = new Image();
   img1.src = "/images/why-work-btnhover.gif"
   img2.src = "/images/why-work-btnpurple.gif"
   img3.src = "/images/why-work-btn-active.gif"
}