/**
 * Toggles the visibility of a dropdown list UL for id
 *
 * @param what	string	ID of dropdown list
 * @return	bool	Always returns true (some older browsers dont handle events without this)
 */
function ddl_toggle(what)
{
	var e = document.getElementById(what);
	switch (e.style.display)
	{
		case 'none':
			e.style.display = 'block';
			break;
		case 'block':
			e.style.display = 'none';
			break;
		default:
			e.style.display = 'block';
			break;
	}
	return true;
} //ddl_toggle()