function initMoving(target, position, topLimit, btmLimit)
{
	if (!target)
		return false;

	var obj = target;
	obj.initTop = position;
	obj.topLimit = topLimit;
	obj.bottomLimit = Math.max(document.documentElement.scrollHeight, document.body.scrollHeight) - btmLimit - obj.offsetHeight;

	obj.style.position = "absolute";
	obj.top = obj.initTop;
	obj.left = obj.initLeft;

	if (typeof (window.pageYOffset) == "number")
	{	//WebKit
		obj.getTop = function()
		{
			return window.pageYOffset;
		}
	} else if (typeof (document.documentElement.scrollTop) == "number")
	{
		obj.getTop = function()
		{
			return Math.max(document.documentElement.scrollTop, document.body.scrollTop);
		}
	} else
	{
		obj.getTop = function()
		{
			return 0;
		}
	}

	if (self.innerHeight)
	{	//WebKit
		obj.getHeight = function()
		{
			return self.innerHeight;
		}
	} else if (document.documentElement.clientHeight)
	{
		obj.getHeight = function()
		{
			return document.documentElement.clientHeight;
		}
	} else
	{
		obj.getHeight = function()
		{
			return 500;
		}
	}

	obj.move = setInterval(function()
	{
		if (obj.initTop > 0)
		{
			pos = obj.getTop() + obj.initTop;
		} else
		{
			pos = obj.getTop() + obj.getHeight() + obj.initTop;
			//pos = obj.getTop() + obj.getHeight() / 2 - 15;
		}

		if (pos > obj.bottomLimit)
			pos = obj.bottomLimit;
		if (pos < obj.topLimit)
			pos = obj.topLimit;

		interval = obj.top - pos;
		obj.top = obj.top - interval / 3;
		obj.style.top = obj.top + "px";
	}, 30)
}