function collapseAll(){
	document.getElementById('staff1').style.display = 'none';
}

function switchMenu(obj, obj2) {
	
	var el = document.getElementById(obj);
	var img = document.getElementById(obj2);
	
	if ( el.style.display != 'none' ) {
		el.style.display = 'none';
		img.src = 'images/plus.jpg';
		
	}
	else {
		el.style.display = 'block';
		img.src = 'images/minus.jpg';
	}
}