$(document).ready(function(){
	$('#head li:not(.active) img').hover(function(){
		var path = $(this).attr('src');
		path = path.split('-active').join('');
		path = path.split('.gif').join('-active.gif');
		$(this).attr({'src' : path});
	},function(){
		var path = $(this).attr('src');
		path = path.split('-active').join('');
		$(this).attr({'src' : path});		
	});
});