function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

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

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    nav_manf_over = newImage("graphics/nav_manf_over.gif");
    nav_news_over = newImage("graphics/nav_news_over.gif");
    nav_copro_over = newImage("graphics/nav_copro_over.gif");
    nav_menu_over = newImage("graphics/nav_menu_over.gif");
    nav_contact_over = newImage("graphics/nav_contact_over.gif");
    nav_home_over = newImage("graphics/nav_home_over.gif");
    splash_newyork_over = newImage("graphics/splash_newyork_over.jpg");
    splash_newengland_over = newImage("graphics/splash_newengland_over.jpg");
	home_foodservice_over = newImage("graphics/home_foodservice-over.jpg");
	home_des_over = newImage("graphics/home_des-over.jpg");
	home_club_over = newImage("graphics/home_club-over.jpg");
	nav2_doclibrary_over = newImage("graphics/nav2_doclibrary_over.gif");
    nav2_logout_over = newImage("graphics/nav2_logout_over.gif");
	manf_intro_fs_over = newImage("graphics/manf_intro_fs_over.gif");
    manf_intro_des_over = newImage("graphics/manf_intro_des_over.gif");
    manf_intro_cs_over = newImage("graphics/manf_intro_cs_over.gif");
	ss1on = newImage("mapquest/graphics/ss1on.gif");
	ss2on = newImage("mapquest/graphics/ss2on.gif");
	ss3on = newImage("mapquest/graphics/ss3on.gif");
	ss4on = newImage("mapquest/graphics/ss4on.gif");
	ss5on = newImage("mapquest/graphics/ss5on.gif");
	ss6on = newImage("mapquest/graphics/ss6on.gif");
    preloadFlag = true;
  }
}