window.addEvent('domready', function() {	
				
				var myImages = new Asset.images(['/images/about/boxbg.jpg','/images/about/factsbg.jpg',  '/images/about/hq.jpg',  '/images/about/relentlessbg.jpg'], {
    onComplete: function(){
      
  
														
	  }

												  });

		var nimgs = $$(".aboutnav");
				nimgs.each(function(portimg) {
									portimg.addEvent('mouseenter', function(){
										var id = portimg.get('id');
										var roll = 'images/about/'+id+'roll.gif';
										//alert(roll);
										portimg.setProperty('src',roll);
									});
									portimg.addEvent('mouseleave', function(){
										var id = portimg.get('id');
										var roll = 'images/about/'+id+'.gif';
										portimg.setProperty('src',roll);
									});
								});

									
									
								

			
			
							
	
	});