$(function(){
	
	var BANNER_NUM = 3;
	var DELAY = 5000;
	var ANIMATION_SECONDS = 1000;
	
	$('#topicsLotation').each(function(){
		$(this).css({
			width:450,
			height:91*BANNER_NUM+5*(BANNER_NUM-1),
			overflow:'hidden',
			position:'relative'
		});
		$('#topicsLotation ul').css({
			position:'relative'
		});
		
		setInterval(function(){
			var current = 
			$('#topicsLotation ul').animate({
				'top': -91-0
			}, {
				duration:ANIMATION_SECONDS,
				easing:'easeOutCubic',
				complete:function(){
					var topnode = $('#topicsLotation ul li:first-child').get(0);
					$('#topicsLotation ul').css({
						'top': 0
					});
					$('#topicsLotation ul').append(topnode);
				}
			});
		}, DELAY)
		
	});
	
});