int getNumMembers() {
		
		int numMembers = 0;
		
		memberIdList = new ArrayList<Integer>();
		
		for (int i=0; i<memberList.size(); i++) {
			memberIdList = memberList.get(i);
			for (int j=0; j<memberIdList.size(); j++) {
				numMembers++;
			}
		}
		
		return numMembers;
	}