function goTop(acceleration, time) {
acceleration = acceleration || 0.1;
time = time || 16;
						
var dx = 0;
var dy = 0;
var bx = 0;
var by = 0;
var wx = 0;
var wy = 0;
						
if (document.documentElement) {
	dx = document.documentElement.scrollLeft || 0;
	dy = document.documentElement.scrollTop || 0;
}
if (document.body) {
	bx = document.body.scrollLeft || 0;
	by = document.body.scrollTop || 0;
}
var wx = window.scrollX || 0;
var wy = window.scrollY || 0;
						
var x = Math.max(wx, Math.max(bx, dx));
var y = Math.max(wy, Math.max(by, dy));
						
var speed = 1 + acceleration;
window.scrollTo(Math.floor(x / speed), Math.floor(y / speed));
if(x > 0 || y > 0) {
	var invokeFunction = "goTop(" + acceleration + ", " + time + ")"
	window.setTimeout(invokeFunction, time);
}
}