var preloadFlag = false;

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];
		}
	}
}

function preloadImages() {
	if (document.images) {
		facilities_over = newImage("images/nav_facilities_on.gif");
		location_over = newImage("images/nav_location_on.gif");
		activities_over = newImage("images/nav_activities_on.gif");
		dining_over = newImage("images/nav_dining_on.gif");
		weddings_over = newImage("images/nav_weddings_on.gif");
		groups_over = newImage("images/nav_groups_on.gif");
		attractions_over = newImage("images/nav_attractions_on.gif");
		press_over = newImage("images/nav_press_on.gif");
		preloadFlag = true;
	}
}