function show_assoc_tab(){
	var tab_assoc = document.getElementById('assoc_tab');
	var tab_cust = document.getElementById('customer_tab');
	var tab_emp = document.getElementById('employee_tab');

	var content_assoc = document.getElementById('Associations');
	var content_cust = document.getElementById('customer_login');
	var content_emp = document.getElementById('employee_login');

	tab_assoc.className = 'unhidden';
	tab_cust.className = 'hidden';
	tab_emp.className = 'hidden';

	content_assoc.className = 'unhidden';
	content_cust.className = 'hidden';
	content_emp.className = 'hidden';
}

function show_cust_tab(){
	var tab_assoc = document.getElementById('assoc_tab');
	var tab_cust = document.getElementById('customer_tab');
	var tab_emp = document.getElementById('employee_tab');
	
	var content_assoc = document.getElementById('Associations');
	var content_cust = document.getElementById('customer_login');
	var content_emp = document.getElementById('employee_login');
	
	tab_assoc.className = 'hidden';
	tab_cust.className = 'unhidden';
	tab_emp.className = 'hidden';
	
	content_assoc.className = 'hidden';
	content_cust.className = 'unhidden';
	content_emp.className = 'hidden';
}

function show_emp_tab(){
	var tab_assoc = document.getElementById('assoc_tab');
	var tab_cust = document.getElementById('customer_tab');
	var tab_emp = document.getElementById('employee_tab');
	
	var content_assoc = document.getElementById('Associations');
	var content_cust = document.getElementById('customer_login');
	var content_emp = document.getElementById('employee_login');
	
	tab_assoc.className = 'hidden';
	tab_cust.className = 'hidden';
	tab_emp.className = 'unhidden';
	
	content_assoc.className = 'hidden';
	content_cust.className = 'hidden';
	content_emp.className = 'unhidden';
}