function toggle(obj) {
	var bio = document.getElementById("sub_bio");
	var media = document.getElementById("sub_media");
	var tour = document.getElementById("sub_tour");
	var el = document.getElementById(obj);
	
	if ( el.style.display != 'none' ) { 
		el.style.display = 'none';		
	}
	else {
		if ( media.style.display != 'none' ) { media.style.display = 'none' }
		if ( bio.style.display != 'none' ) { bio.style.display = 'none' }
		if ( tour.style.display != 'none' ) { tour.style.display = 'none' }
		el.style.display = '';
	}
}