function fold(id)
{

e1=document.getElementById(id);


if(e1.style.display=='none') e1.style.display='block';
else e1.style.display='none';

}




        function displaySubMenu(li) {
            var subMenu = li.getElementsByTagName("ul")[0];
            subMenu.style.display = "block";
        }
		
		
		
        function hideSubMenu(li) {
            var subMenu = li.getElementsByTagName("ul")[0];
            subMenu.style.display = "none";
        }