/*
 * Copyright : (c) 2006 Webfish IT Services
 * Website   : http://www.webfish.nl
 * Email     : info@webfish.nl
 * -------------------------------------------------------------------------
 *   $Id$
 * -------------------------------------------------------------------------
 */

var str_prev_nr = '';

function blocking(nr)
{
	if (str_prev_nr != '')
	{
		document.getElementById(str_prev_nr).style.display = 'none';
		document.getElementById(str_prev_nr +'_link').style.display = '';
	}
	if (str_prev_nr != nr)
	{
		document.getElementById(nr).style.display = '';
		document.getElementById(nr +'_link').style.display = 'none';
		str_prev_nr = nr;
	}
	else
	{
		str_prev_nr = '';
	}

	return false;
}