function toggle(arg) {
	// determine if section is currently expanded, or collapsed
	var temp, section;
	if (arg.indexOf("-expanded") != -1) {
		temp = arg.indexOf("-expanded")
		section = arg.substring(arg,temp);
		status = "-expanded";
		document.getElementById(section + '-link' + status).style.display = 'none';
		document.getElementById(section + '-link-collapsed').style.display = 'inline';
	}
	else {
		temp = arg.indexOf("-collapsed");
		section = arg.substring(arg,temp);
		status = "-collapsed";
		document.getElementById(section + '-link-collapsed').style.display = 'none';
		document.getElementById(section + '-link-expanded').style.display = 'inline';
	}


	if (document.getElementById(section).style.display == 'inline') {
		document.getElementById(section).style.display = 'none';
		}
		else {
		document.getElementById(section).style.display = 'inline';
	}
}