$(document).ready(function() {
	// Preload Images
	$(".advert_image").each(function() {
		$.preLoadImages($(this).attr("src").replace(/(.+)(\.[^.]+)/, "$1_hover$2"));

		// Add rollover to the banner images
		$(this).mouseover(function () {
			$(this).attr("src", $(this).attr("src").replace(/(.+)(\.[^.]+)/, "$1_hover$2"));
		});
		$(this).mouseout(function () {
			$(this).attr("src", $(this).attr("src").replace("_hover", ""));
		});
	});
});