$(document).ready(function(){

	$('#menu_ul li[@class!=seleccionado]').mouseover(function(){
		$(this).css("background-image","url(images/m1_1.jpg)");	
		$(this).children().css("color","#666");
	});
	
	$('#menu_ul li[@class!=seleccionado]').mouseout(function(){
		$(this).css("background-image","url(images/m1.jpg)");	
		$(this).children().css("color","#fff");
	});
						   
});