var actual_height = 0;

function start_scroll()
{
	setTimeout ('scroll_up();', 2000);
	actual_height = document.getElementById ('start_text').offsetHeight;
	document.getElementById ('start_text').style.height = "230px";
	document.getElementById ('start_text').scrollTop = 0;
} // start_scroll()

function scroll_up()
{
	if (document.getElementById ('start_text').scrollTop < actual_height - 250)
	{
		document.getElementById ('start_text').scrollTop += 1;
		var timeout = 100;
	}
	else
	{
		document.getElementById ('start_text').scrollTop = 0;
		var timeout = 2000;
	}
	setTimeout ('scroll_up();', timeout);
}