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

function scrollBanner(timer, moveNumber) {

	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) {
		
		var div, exec = function() {
			move(to);
		};

		// to.person = lo;
		to.t = t;
		to.a = a;
		to.c = c;
		with (to.style) {
			position = "absolute";
			display = "block";
			top = document.documentElement.scrollTop + t;
			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.interval = window.setInterval(exec, timer);
	};
}

window.onload = function() {
	var b = new scrollBanner(10, 15);
	b.add(getId("lwc"), 240, 72, 0);

	b.add(getId("rwc"), 80, 10, 1, getId("rwc_c"));

	b = null;
}