function hidesub1(){
if (document.getElementById){
var subs = document.getElementById('submenu1')
subs.style.display = 'none';
}}
function hidesub2(){
if (document.getElementById){
var subs = document.getElementById('submenu2')
subs.style.display = 'none';
}}
function hidesub3(){
if (document.getElementById){
var subs = document.getElementById('submenu3')
subs.style.display = 'none';
}}
function showsub1(){
if (document.getElementById){
var subs = document.getElementById('submenu1')
subs.style.display = 'block';
}}
function showsub2(){
if (document.getElementById){
var subs = document.getElementById('submenu2')
subs.style.display = 'block';
}}
function showsub3(){
if (document.getElementById){
var subs = document.getElementById('submenu3')
subs.style.display = 'block';
}}