var currentpos=0,alt=1,curpos1=0,curpos2=-1;

var timer;

function f_onmouseover()
{
	clearInterval(timer)
}

function initialize()
{
	timer = setInterval("scrollwindow()",100);
}

function scrollwindow()
{
	if (document.all)
	{
		temp=document.body.scrollTop;
	}
	else
	{
		temp=window.pageYOffset;
	}
	
	if (alt==0)
	{
		alt=1;
	}
	else
	{
		alt=0;
	}
	
	if (alt==0)
	{
		curpos1=temp;
	}
	else
	{
		curpos2=temp;
	}
	
	if (curpos1!=curpos2)
	{
		if (document.all)
		{
			currentpos=document.body.scrollTop+1;
		}
		else
		{
			currentpos=window.pageYOffset+1;
		}
		window.scroll(0,currentpos);
	}
	else
	{
		currentpos=0;
		window.scroll(0,currentpos);
	}
}

window.onload=initialize;