$(document).ready(function(){
	jQuery.preloadimages = function() {
		for(var i = 0; i<arguments.length; i++) {
			jQuery("<img>").attr("src", arguments[i]);
		}
	}
	
	$.preloadimages("images/nav-about-over.gif", "images/nav-visits-over.gif", "images/nav-home-over.gif",
					"images/nav-books-over.gif", "images/nav-contact-over.gif", "images/nav-musings-over.gif");

	$('#about').hover(function() {
		$(this).attr("src","images/nav-about-over.gif");
			}, function() {
		$(this).attr("src","images/nav-about.gif");
	});
	
	$('#books').hover(function() {
		$(this).attr("src","images/nav-books-over.gif");
			}, function() {
		$(this).attr("src","images/nav-books.gif");
	});

	$('#contact').hover(function() {
		$(this).attr("src","images/nav-contact-over.gif");
			}, function() {
		$(this).attr("src","images/nav-contact.gif");
	});
	
	$('#visits').hover(function() {
		$(this).attr("src","images/nav-visits-over.gif");
			}, function() {
		$(this).attr("src","images/nav-visits.gif");
	});
	
	$('#news').hover(function() {
		$(this).attr("src","images/nav-news-over.gif");
			}, function() {
		$(this).attr("src","images/nav-news.gif");
	});
	
	$('#musings').hover(function() {
		$(this).attr("src","images/nav-musings-over.gif");
			}, function() {
		$(this).attr("src","images/nav-musings.gif");
	});
	
	$('#home').hover(function() {
		$(this).attr("src","images/nav-home-over.gif");
			}, function() {
		$(this).attr("src","images/nav-home.gif");
	});

});