window.addEvent('domready', function() {

if ( Browser.Engine.name != 'trident' || (Browser.Engine.name == 'trident' && Browser.Engine.version != 4)  )	
		
	 $('mainnav').getElements('li a').each( function(item){
		if ( !item.hasClass('clicked') ) {
			item.setStyle('opacity',0.01).addEvent('mouseenter', function() { this.fade(1)}).addEvent('mouseleave',function(){this.fade(0.01)});
		}
	})
})