function open_menu(id)
{
    document.getElementById('menu_td'+id).style.display= '';
}

function close_menu(id)
{
    document.getElementById('menu_td'+id).style.display='none';
}

function open_right_menu(id)
{
    document.getElementById('menu_right_td'+id).style.display= '';
}

function close_right_menu(id)
{
    document.getElementById('menu_right_td'+id).style.display='none';
}