// copyright 2007 www.webfire.biz

function swap(div_id) {
	if (document.getElementById(div_id).style.display == 'none' || document.getElementById(div_id).style.display != 'block') {
			document.getElementById(div_id).style.display = 'block';
	} 
	else {
			document.getElementById(div_id).style.display = 'none';
	}
}

function hid_vis(id1,id2)
{
	document.getElementById(id1).style.visibility = "hidden";
	document.getElementById(id2).style.visibility = "visible";
}