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) {
		home_over = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_home_over.png");
		home_down = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_home_down.png");
		communities_over = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_properties_over.png");
		communities_down = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_properties_down.png");
		map_over = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_map_over.png");
		map_down = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_map_down.png");
		search_over = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_search_over.png");
		search_down = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_search_down.png");
		contact_us_over = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_contact_us_over.png");
		contact_us_down = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_contact_us_down.png");
		nav_2_over = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_level_2_over.png");
		nav_2_down = newImage("http://files.apts247.com/files/corporate/000/000/002/16/gateway/images/nav_level_2_down.png");
		preloadFlag = true;
	}
}