// JavaScript Document

//easing

jQuery.easing.quart = function (x, t, b, c, d){
	return -c * ((t=t/d-1)*t*t*t - 1) +b;
};

//click

$ (function (){
$("#pagetop a").click(function(){
$("html,body").animate({ scrollTop: 0 },800,'quart');
															 });
						 });