$(document).ready(function(){
	$('#banner').css({backgroundPosition: '50% 0px'});
	$("div.box a").mouseenter(function(){		
				var id = this.id.replace("link", "");
				var position = -296*id;
				$('#banner').stop().animate({backgroundPosition: '(50% ' + position +'px )'}, 500 );
				hideOthers(id);
				});
	$("div.box a").mouseleave(function(){	
				var id = this.id.replace("link", "");
				$('#banner').animate({backgroundPosition: '(50% 0px)'}, 500 );	
				showOthers();
				});

	function hideOthers(id){
		 for (var i=1; i<5; i++){
			if (i!=id){
				$('#box' + i + ' a').css('display', 'block'); 
				$('#box' + i).css('filter', 'alpha(opacity=90)');
				$('#box' + i).stop().fadeTo("fast",0);
				$('#box' + i + ' a').css('display', 'none');
				
				}
			}
							


		}
	function showOthers(){
		for (var i=1; i<5; i++){
				$('#box' + i).fadeTo("fast",0.9);
				$('#box' + i).css('filter', 'alpha(opacity=90)');
			     $('#box' + i + ' a').css('display', 'inline');
			$('#box' + i + ' a').css('display', 'block');    
			}
						
		}
});