function newImage( imgSrc ){
 
 var imgName = new Image();
 imgName.src = imgSrc;
 
 return imgName;

}

function change( imgName, imgLoc )
{
 if ( document.images && (preloadFlag == true) )
 {
  
  document[imgName].src = imgLoc ;
 
 }
}


var preloadFlag = false;
function loadImages()
{
 if (document.images)
 {
 
  //**** Edit this list to include vertical rollover images ****
  //**** Example: aboutus_over = newImage( "images/menu-aboutus-over.gif" );
  //**** Do NOT put any hyphens in the left side (aboutus_over, not aboutus-over).
  //**** Underscores are OK.

  default_over = newImage("images/menu-home-over.gif");
  button_over = newImage("images/menu-button-over.gif");
  services_over = newImage("images/menu-services-over.gif");
  clients_over = newImage("images/menu-clients-over.gif");
  results_over = newImage("images/menu-results-over.gif");
  background_over = newImage("images/menu-background-over.gif");
  contact_over = newImage("images/menu-contact-over.gif");


  preloadFlag = true;
 }
}