var Site = {
	
	navigation: function()
	{
		$$('#navigation li a').each( function(el) 
		{
			var temp = el.lastChild.getAttribute('src');
			
			el.addEvent('mouseover', function(e)
			{
				el.lastChild.setAttribute('src', temp.replace(/-off/g, '-on'));
			});
			
			el.addEvent('mouseout', function(e)
			{
				el.lastChild.setAttribute('src', temp.replace(/-on/g, '-off'));
			});
		});
		
		$$('#navigation li.active a').each( function(el) 
		{
			el.removeEvents('mouseover');
			el.removeEvents('mouseout');
		});
	}

};


window.addEvent('domready', Site.navigation);