function navega(url) {
	if (url) {
		window.location.href = url;
	}
}

function navega_copyright() {
	alert("navega_copyright");
}

function navega_contacto() {
	alert("navega_contacto");
}

function navega_favoritos() {
	alert("navega_favoritos");
}

$(document).ready(function(){
	$nav_li=$("#nav li");
	$nav_li_a=$("#nav li a");
	var animSpeed=450; //fade speed
	var hoverTextColor="#1b4862"; //text color on mouse over
	var hoverBackgroundColor="#829cac"; //background color on mouse over
	var textColor=$nav_li_a.css("color");
	var backgroundColor=$nav_li.css("background-color");
	//text color animation
	$nav_li_a.hover(function() {
		var $this=$(this);
		$this.stop().animate({ color: hoverTextColor }, animSpeed);
	},function() {
		var $this=$(this);
		$this.stop().animate({ color: textColor }, animSpeed);
	});
	//background color animation
	$nav_li.hover(function() {
		var $this=$(this);
		$this.stop().animate({ backgroundColor: hoverBackgroundColor }, animSpeed);
	},function() {
    	var $this=$(this);
		$this.stop().animate({ backgroundColor: backgroundColor }, animSpeed);
	});
});