// JavaScript Library for Junker & Halverscheid Formenbau GmbH & Co. KG
// WebSite juha.de
// Copyright © Christian Germelmann · chgTools Solution Development · www.chgtools.net


var pageTOP = 0;
var pageHEIGHT = 0;

function dimScroll()
{
	if (document.layers)
	{
		var page = eval(document.contentLayer);
	}
	else
	{
		if (document.getElementById)
		{
			var page= eval("document.getElementById('contentLayer').style");
		}
		else
		{
			if (document.all)
			{
				var page = eval(document.all.contentLayer.style);
			}
		}
	}
	pageTOP = parseInt(page.top);
	pageHEIGHT = - parseInt(page.height);
}

function verScroll(dir, vel, loop)
{
	loop = true;
	direction = "up";
	speed = 1;
	scrolltimer = null;
	if (document.layers)
	{
		var page = eval(document.contentLayer);
	}
	else
	{
		if (document.getElementById)
		{
			var page= eval("document.getElementById('contentLayer').style");
		}
		else
		{
			if (document.all) 
			{
				var page = eval(document.all.contentLayer.style);
			}
		}
	}
	direction = dir;
	speed = parseInt(vel);
	var y_pos = parseInt(page.top);
	if (loop == true)
	{
		if (direction == "dn" && y_pos > pageHEIGHT)
		{
			page.top = (y_pos - (speed));
		}
		else
		{
			if (direction == "up" && y_pos < pageTOP)
			{
				page.top = (y_pos + (speed));
			}
			else
			{
				if (direction == "top")
				{
					page.top = pageTOP;
				}
			}
		}
		scrolltimer = setTimeout("verScroll(direction,speed)", 1);
   }
}

function stopScroll()
{
	loop = false;
	clearTimeout(scrolltimer);
}