// JavaScript Document


//function to preload the images for rollover affects.
function preloadImage(url){
	var i = new Image();
	i.src = url;
	return i;
}

//assign variables to the preloaded images
if (document.images){
	var museumon = preloadImage("images/museum_down.jpg");
	var museumoff = preloadImage("images/museum_up.jpg");
	var teamon = preloadImage("images/team_down.jpg");
	var teamoff = preloadImage("images/team_up.jpg");
	var specialson = preloadImage("images/specials_down.jpg");
	var specialsoff = preloadImage("images/specials_up.jpg");
	var abouton = preloadImage("images/about_down.jpg");
	var aboutoff = preloadImage("images/about_up.jpg");
	var contacton = preloadImage("images/contact_down.jpg");
	var contactoff = preloadImage("images/contact_up.jpg");
	var infoon = preloadImage("images/info_down.jpg");
	var infooff = preloadImage("images/info_up.jpg");
	var galleryon = preloadImage("images/gallery_down.jpg");
	var galleryoff = preloadImage("images/gallery_up.jpg");
	var snowon = preloadImage("images/snow_down.jpg");
	var snowoff = preloadImage("images/snow_up.jpg");
	var skateon = preloadImage("images/skate_down.jpg");
	var skateoff = preloadImage("images/skate_up.jpg");
	var h2oon = preloadImage("images/h2o_down.jpg");
	var h2ooff = preloadImage("images/h2o_up.jpg");
	var bikeon = preloadImage("images/bike_down.jpg");
	var bikeoff = preloadImage("images/bike_up.jpg");
	var eventson = preloadImage("images/events_down.jpg");
	var eventsoff = preloadImage("images/events_up.jpg");
}

//function to change the image when a mouse rolls over it
function mouseOn(imgName){
	if(document.images)
		document[imgName].src=eval(imgName + "on.src");
}

//function to return an image to its original state.
function mouseOff(imgName){
	if(document.images)
		document[imgName].src=eval(imgName + "off.src");
}