var O = function(e){return document.getElementById(e);}

// 滚动条后显示TOP
window.onscroll = function(){
	if(O('gotop')){
		var scrollY = parseInt(window.scrollY || document.documentElement.scrollTop);
		if(!isNaN(scrollY)){O('gotop').style.display = scrollY > 100 ? 'block' : 'none';}
	}
}

// 营业时间浮动层
function b_shut_up(setup){
	if(setup == 2)
		msg = '<h1>今天营业至此结束，请等待明天！</h1>营业时间：8:00 - 22:00';
	else if(setup == 3)
		msg = '<h1>我要改版折腾了</h1>无惊喜，无期限';
	else
		msg= '<h1>今天即将营业，请耐心等待！</h1>营业时间：8:00 - 22:00';
		
	//var clientH=document.documentElement.clientHeight;
	var a= document.createElement('div');
	var b= document.createElement('div');
	a.id='shut_up_box_bg';
	//a.style.top = b.style.top =((clientH - 130)/2-40)+'px';	
	b.id='shut_up_box';
	b.innerHTML= msg;
	document.body.appendChild(a);
	document.body.appendChild(b);
}