[lord2kim]

boy_cow,

var mas = [];
for (i = 0; i <= 10; i++) {
    mas[i] = [];
    for (j = 0; j <= 10; j++) {
        mas[i][j] = (i == j ? 1 : 0) + (j == 10 ? "\n" : "");
    }
}
alert(mas);