Event.observe(window, 'load', function() { insertScrollBar() });

function insertScrollBar()
{
	$('scrollbar_track').style.visibility="visible";
	var content=$("scrollbar_content");
	content.style.width=content.getWidth()-11+"px";
	content.style.paddingRight="5px";
	var scrollbar = new Control.ScrollBar('scrollbar_content','scrollbar_track');
}