(function($) {
    $.fn.autoMouseOver = function(settings) {
        settings = $.extend({
            outStr: ".",    // default string to replace for the "out" images (eg. home-out.png)
            overStr: "_f2."   // default string to replace for the "over" images (eg. home-over.png)
        }, settings || {});

        // Preload the images
        var preloadImageArray = new Array();
        $(this).filter("img").each(function() {
            var overImg = $(this).attr("src").replace(settings.outStr, settings.overStr);
            var img = new Image();
            img.src = overImg;
            preloadImageArray.push(img); 
        });

        // Set the hover handler
        $(this).filter("img").hover(function() {
            $(this).attr("src", $(this).attr("src").replace(settings.outStr, settings.overStr));
        }, function() {
            $(this).attr("src", $(this).attr("src").replace(settings.overStr, settings.outStr));
        });

	    return $;
    };

})(jQuery);

$(function() {
	$("#nav_menu img").autoMouseOver();
	$("a.sm img").autoMouseOver();	
});