$(document).ready(function(){
	
		    
			
		   $('#navigation li a').append('<span class="hover"></span>')
		   $('#navigation .hover').css("filter","alpha(opacity=00)"); // for IE
		   $('#navigation li a').hover(function() {
	       
		// Stuff that happens when you hover on + the stop()
		$('.hover', this).stop().animate({
			'opacity': 1
			}, 700,'easeOutSine')
	
	},function() {
	
		// Stuff that happens when you unhover + the stop()
		$('.hover', this).stop().animate({
			'opacity': 0
			}, 700, 'easeOutQuad')
	
	})
		   });