// --------------------------------------------------------------------------------------------------------------------------------
// --------------------------------------------------------------------------------------------------------------------------------
//     描述： 隐藏
//   依赖于:  jQuery library; jquery-scrollTo-min.js
//     作者:  林卿;
//     邮箱： lancer07@126.com
//     日期： 2013-11-12
// --------------------------------------------------------------------------------------------------------------------------------
// --------------------------------------------------------------------------------------------------------------------------------
// START

if(typeof ll !=='object') var ll = {};
ll.toTop = function(){
	var showBtn = function(el){
		if ( $(document).scrollTop() == 0 ){
			el.hide();	
		}else{
			el.fadeIn();		
		}	
	};


	var goToTop = function(){
		$.scrollTo('#top',1000);
	}
	this.onReady = function(){
		var $totopbtn = $(".toTop");

		$(window).scroll(function(e){
			showBtn($totopbtn);
		});

		$totopbtn.click(function(e){
			e.preventDefault();
			$('body,html').animate({scrollTop:0}, 'slow'); 
			return false; 
		});	
	};
};

$(function(){(new ll.toTop).onReady()});