function $(id){ 
	return document.getElementById(id);
}



function scrollBanner(timer,moveNumber){
	//timer = 1000000000000;
	function move(o){
		var st = document.documentElement.scrollTop + o.t;
		var sl = document.documentElement.scrollLeft + (o.c == 0 ? o.a:document.documentElement.clientWidth - o.a - o.offsetWidth);
		var tc = st - o.offsetTop,lc = sl - o.offsetLeft;
		with(o.style){
			top = o.offsetTop + (tc != 0 ? tc / Math.abs(tc) : 0) * Math.min(Math.abs(tc), moveNumber) + "px";
			left = o.offsetLeft + (lc != 0 ? lc / Math.abs(lc) : 0) * Math.min(Math.abs(lc), moveNumber) + "px"; 
		} 
		if (o.person) { 
			with (o.person.style) { 
				top = o.offsetTop + "px"; 
				left = o.offsetLeft + o.offsetWidth - o.person.offsetWidth + "px"; 
			}
		} 
	} 

	var hidden = function() { 
		var o = this.parent; 
		window.clearInterval(o.interval); 
		o.parentNode.removeChild(o); 
		this.parentNode.removeChild(this); 
	} 

	this.add = function (to, t, a, c, lo) { 
	/* 
	to为object对象 
	t为距离顶端距离 
	当c = 0的时候，a为距离左边的距离 
	当c != 0的时候，a为距离右边的距离 
	lo为关闭按钮 
	*/ 
	var div, exec = function () { 
		move(to); 
	}; 

	to.person = lo; 
	to.t = 180; 
	to.a = a; 
	to.c = c; 
	with (to.style) { 
		position = "absolute"; 
		display = "block"; 
		//top = document.documentElement.scrollTop + t; 
		top = 417; 
		left = document.documentElement.scrollLeft + (c == 0 ? a : document.documentElement.clientWidth - a - to.offsetWidth); 
	} 

	if ("undefined" != typeof lo) { 
		with (lo.style) { 
			position = "absolute"; 
			display = "block"; 
		} 
		lo.onmousedown = hidden; 
		lo.parent = to; 
	} 
	exec(); 
	//to.
	//to.interval = window.setInterval(exec, timer); 
	}; 
}