function showmenu(id){

document.getElementById('submenu_'+id).style.display="block";
document.getElementById('menu_'+id).className="my_menu_link_active"

if(id!=1){
id=id-1;
document.getElementById('menu_'+id).className="my_menu_link_2"
}


}
function hidemenu(id){
document.getElementById('submenu_'+id).style.display="none";
document.getElementById('menu_'+id).className="my_menu_link"
if(id!=1){
id=id-1;
document.getElementById('menu_'+id).className="my_menu_link"
}
}

function showmenu_last(id){
document.getElementById('submenu_'+id).style.display="block";
document.getElementById('menu_'+id).className="my_menu_link_last_active"
if(id!=1){
id=id-1;
document.getElementById('menu_'+id).className="my_menu_link_2"
}
}
function hidemenu_last(id){
document.getElementById('submenu_'+id).style.display="none";
document.getElementById('menu_'+id).className="my_menu_link_last"
if(id!=1){
id=id-1;
document.getElementById('menu_'+id).className="my_menu_link"
}
}

function make_inactive(id){
document.getElementById('sub_link_'+id).className="my_submenu_link";
}

function make_active(id){
document.getElementById('sub_link_'+id).className="my_submenu_link_active";
}