function sh(id) //used to "roll" things up and down
	{
		el = document.getElementById(id);
		if (el && el.style.visibility == 'hidden')
		{
			el.style.visibility = 'visible';
			el.style.display = '';
		} else {
			el.style.visibility = 'hidden';
			el.style.display = 'none';
		}
	}