function toggle(anchor, id)
{
	var myElement = document.getElementById(id);
	anchor = (anchor == null) ? document.getElementById(id+"Anchor") : anchor;
	if (myElement.style.display == 'none')
	{		
		anchor.style.background = 'none';
		myElement.style.display = 'block';
	}
	else
	{
		anchor.style.cssText = 'a:hover { background: url(../images/down_arrow.gif) no-repeat right;	text-decoration: none; }';
		myElement.style.display = 'none';
	}
}