function switchit(list) {
var listElementStyle=document.getElementById(list).style;
if (listElementStyle.display=="none") {
listElementStyle.display="block";}
else {
listElementStyle.display="none";}
}

function switchStart() {
document.getElementById('menu1').style.listStyle="none"; 
document.getElementById('menu2').style.display="none"; // collapse list 
document.getElementById('menu3').style.display="none"; // collapse list 
document.getElementById('menu4').style.display="none"; // collapse list 
document.getElementById('menu5').style.display="none"; // collapse list 
document.getElementById('menu6').style.display="none"; // collapse list 

}