function Menu(num) {
if (document.getElementById('Menu' + num).style.display != 'none') {
document.getElementById('td' + num).style.backgroundColor = '#f8f8f8';
document.getElementById('td' + num).opened = false;
document.getElementById('lin' + num).className = 'bl';
swon('arr' + num, 'arr');
document.getElementById('Menu' + num).style.display = 'none';
} else {
document.getElementById('td' + num).opened = true;
document.getElementById('td' + num).style.backgroundColor = '#E13A3E';
document.getElementById('lin' + num).className = 'wh';
swon('arr' + num, 'arr_o');
document.getElementById('Menu' + num).style.display = 'block';
}
return false;
}