图片文字动画组合切换

var cnt		= 0;
		$thumbScroller.find('img').each(function(){
			var $img 	= $(this);
			$('<img/>').load(function(){
				++cnt;
				if(cnt == scrollerContentCnt){
					//one items height
					itemHeight = $thumbScroller.find('.content:first').height();
					buildScrollableItems();
					//show the scrollable container
					$thumbScroller.stop().animate({'left':'0px'},animSpeed);
				}
			}).attr('src',$img.attr('src'));
		});