$(function(){
	$('#page .nav li:not(.on) img').bind('mouseenter', function(){
		this.src = this.src.replace(/(.*)\.(jpg|gif|png)$/i, "$1-over-trans.$2")
	});
	$('#page .nav li:not(.on) img').bind('mouseleave', function(){
		this.src = this.src.replace(/(.*)-over-trans\.(jpg|gif|png)$/i, "$1.$2")
	});				
});