function newImage( imgSrc ){

 var imgName = new Image();
 imgName.src = imgSrc;

 return imgName;

}

function change( imgName, imgLocation )
{
 document[imgName].src = imgLocation ;
}

var preloadFlag = false;
function loadImages()
{
 if (document.images)
 {
 home = newImage("images/home_on.jpg");
 about = newImage("images/about_on.jpg");
 services = newImage("images/services_on.jpg");
 gallery = newImage("images/gallery_on.jpg");
 equipment = newImage("images/equipment_on.jpg");
 warranty = newImage("images/warranty_on.jpg");
 whats_new = newImage("images/candc_collision_whats_new_on.jpg");

 preloadFlag = true;
 }
}