// Scroll Functions

var sup = false;
var sdown = false;
var scrollamount = 4;

function startScrollUp(amount)
	{
		scrollamount = amount;
		sup = true;
		setScrollUp();
	}

function stopScrollUp()
	{
		sup = false;
	}

function startScrollDown(amount)
	{
		scrollamount = amount;
		sdown = true;
		setScrollDown();
	}

function stopScrollDown()
	{
		sdown = false;
	}

function setScrollUp()
	{
		if (sup == true)
			{
				setTimeout("setScrollUp()",24);
				scrollUp();
			}		
	}

function setScrollDown()
	{
		if (sdown == true)
			{
				setTimeout("setScrollDown()",24);
				scrollDown();
			}		
	}

 
function scrollUp()
{
var height = parseInt(document.getElementById("maintext").offsetHeight);
var pos = parseInt(document.getElementById("maintext").style.top);

	if ((height + pos) != height){
		document.getElementById("maintext").style.top=(pos + scrollamount) + "px";
	}
	
}

function scrollDown()
{
var height = parseInt(document.getElementById("maintext").offsetHeight);
var pos = parseInt(document.getElementById("maintext").style.top);

	if ((height + pos) > 234) {
		document.getElementById("maintext").style.top=(pos - scrollamount) + "px";
	}
	
}