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

function changeImages() {
	if (nav != changeImages.arguments[0]){
		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) {
		sub_header_over = newImage("sub_header_over.jpg");
		btn_sub_home_over = newImage("btn_sub_home_over.gif");
		btn_sub_reservations_over = newImage("btn_sub_reservations_over.gif");
		btn_sub_accommodations_over = newImage("btn_sub_accommodations_over.gif");
		btn_sub_spa_over = newImage("btn_sub_spa_over.gif");
		btn_sub_activities_events_over = newImage("btn_sub_activities_over.gif");
		btn_sub_weddings_groups_over = newImage("btn_sub_weddings_over.gif");
		btn_sub_dining_over = newImage("btn_sub_dining_over.gif");
		btn_sub_directions_over = newImage("btn_sub_about_over.gif");
		sub_corner_bottom_over = newImage("sub_corner_bottom_over.gif");
		preloadFlag = true;
	}
}