;(function($){
	$.fn.extend({
		"bannerPic":function(){
			return this.each(function(){
				var $banner_adv = $(this);
				var $banner_lump = $banner_adv.find(".banner_lump");
				var $banner_body = $banner_adv.find(".banner_body");
				$banner_lump.clone(true).appendTo($banner_body).css("top","285px");
				$banner_body.css("height",parseInt($banner_lump.height())*2+"px");
				
				//alert($banner_lump.height());
				var imgAni = function(){
					if(parseInt($banner_body.css("top")) == (-285)){
						$banner_body.css("top","0px");
					}else{
						$banner_body.animate({
							"top":"-=95px"
						},500);
					}
				}
				
				setInterval(imgAni,5000);
			});
		}
	});
})(jQuery);