function imgPreload(){

	//preload images
	
	daily_default_off = new Image();
	daily_default_off.src = "/images/nav/daily_arch_off.gif";
	daily_default_on = new Image();
	daily_default_on.src = "/images/nav/daily_arch_on.gif";
	daily_default_pic = new Image();
	daily_default_pic.src = "/images/nav/daily_arch_pic.jpg";
	
	daily_hist_off = new Image();
	daily_hist_off.src = "/images/nav/daily_hist_off.gif";
	daily_hist_on = new Image();
	daily_hist_on.src = "/images/nav/daily_hist_on.gif";
	daily_hist_pic = new Image();
	daily_hist_pic.src = "/images/nav/daily_hist_pic.jpg";
	
	daily_map_off = new Image();
	daily_map_off.src = "/images/nav/daily_map_off.gif";
	daily_map_on = new Image();
	daily_map_on.src = "/images/nav/daily_map_on.gif";
	daily_map_pic = new Image();
	daily_map_pic.src = "/images/nav/daily_map_pic.jpg";
	
	daily_schedule_off = new Image();
	daily_schedule_off.src = "/images/nav/daily_schedule_off.gif";
	daily_schedule_on = new Image();
	daily_schedule_on.src = "/images/nav/daily_schedule_on.gif";
	daily_schedule_pic = new Image();
	daily_schedule_pic.src = "/images/nav/daily_schedule_pic.jpg";
	
	private_default_off = new Image();
	private_default_off.src = "/images/nav/private_event_off.gif";
	private_default_on = new Image();
	private_default_on.src = "/images/nav/private_event_on.gif";
	private_default_pic = new Image();
	private_default_pic.src = "/images/nav/private_event_pic.jpg";
	
	private_vessel_off = new Image();
	private_vessel_off.src = "/images/nav/private_vessel_off.gif";
	private_vessel_on = new Image();
	private_vessel_on.src = "/images/nav/private_vessel_on.gif";
	private_vessel_pic = new Image();
	private_vessel_pic.src = "/images/nav/private_vessel_pic.jpg";
	
	private_bar_off = new Image();
	private_bar_off.src = "/images/nav/private_bar_off.gif";
	private_bar_on = new Image();
	private_bar_on.src = "/images/nav/private_bar_on.gif";
	private_bar_pic = new Image();
	private_bar_pic.src = "/images/nav/private_bar_pic.jpg";
	
	private_caterer_off = new Image();
	private_caterer_off.src = "/images/nav/private_caterer_off.gif";
	private_caterer_on = new Image();
	private_caterer_on.src = "/images/nav/private_caterer_on.gif";
	private_caterer_pic = new Image();
	private_caterer_pic.src = "/images/nav/private_caterer_pic.jpg";
	
	evening_default_off = new Image();
	evening_default_off.src = "/images/nav/evening_cocktail_off.gif";
	evening_default_on = new Image();
	evening_default_on.src = "/images/nav/evening_cocktail_on.gif";
	evening_default_pic = new Image();
	evening_default_pic.src = "/images/nav/evening_cocktail_pic.jpg";
	
	evening_bridge_off = new Image();
	evening_bridge_off.src = "/images/nav/evening_bridge_off.gif";
	evening_bridge_on = new Image();
	evening_bridge_on.src = "/images/nav/evening_bridge_on.gif";
	evening_bridge_pic = new Image();
	evening_bridge_pic.src = "/images/nav/evening_bridge_pic.jpg";
	
	evening_devil_off = new Image();
	evening_devil_off.src = "/images/nav/evening_devil_off.gif";
	evening_devil_on = new Image();
	evening_devil_on.src = "/images/nav/evening_devil_on.gif";
	evening_devil_pic = new Image();
	evening_devil_pic.src = "/images/nav/evening_devil_pic.jpg";
	
	evening_fireworks_off = new Image();
	evening_fireworks_off.src = "/images/nav/evening_fireworks_off.gif";
	evening_fireworks_on = new Image();
	evening_fireworks_on.src = "/images/nav/evening_fireworks_on.gif";
	evening_fireworks_pic = new Image();
	evening_fireworks_pic.src = "/images/nav/evening_fireworks_pic.jpg";
	
		
}