if (document.images) {
  
		navmain_home_out = new Image();
		navmain_home_out.src = "/images/navmain_home.gif";
		navmain_home_over = new Image();
		navmain_home_over.src = "/images/navmain_home_over.gif";
		navmain_listings_out = new Image();
		navmain_listings_out.src = "/images/navmain_listings.gif";
		navmain_listings_over = new Image();
		navmain_listings_over.src = "/images/navmain_listings_over.gif";
		navmain_help_out = new Image();
		navmain_help_out.src = "/images/navmain_help.gif";
		navmain_help_over = new Image();
		navmain_help_over.src = "/images/navmain_help_over.gif";
		navmain_mydigsville_out = new Image();
		navmain_mydigsville_out.src = "/images/navmain_mydigsville.gif";
		navmain_mydigsville_over = new Image();
		navmain_mydigsville_over.src = "/images/navmain_mydigsville_over.gif";
		navmain_mingle_out = new Image();
		navmain_mingle_out.src = "/images/navmain_mingle.gif";
		navmain_mingle_over = new Image();
		navmain_mingle_over.src = "/images/navmain_mingle_over.gif";
		navmain_howto_out = new Image();
		navmain_howto_out.src = "/images/navmain_howto.gif";
		navmain_howto_over = new Image();
		navmain_howto_over.src = "/images/navmain_howto_over.gif";
		navmain_memberservices_out = new Image();
		navmain_memberservices_out.src = "/images/navmain_memberservices.gif";
		navmain_memberservices_over = new Image();
		navmain_memberservices_over.src = "/images/navmain_memberservices_over.gif";
		navmain_joinus_out = new Image();
		navmain_joinus_out.src = "/images/navmain_joinus.gif";
		navmain_joinus_over = new Image();
		navmain_joinus_over.src = "/images/navmain_joinus_over.gif";
	
  }

  function swap(imageName, action) {
    if (document.images) {
      document[imageName].src = eval(imageName + "_" + action + ".src");
    }
  }
  
  function setImage(imageName, newImage) {
    if (document.images) {
      document[imageName].src = eval(newImage + ".src");
    }
  }