test

 var my_obj = new Object();
    my_obj = {nick: 'alex1rap', age: 18, others: {interests: ['programming', 'bike', 'workout', 'free run', 'drawing', 'singing'], food: ['milk', 'tea', 'coffee', 'potato', 'bread']}};
    alert('nick = ' + my_obj.nick);
    alert('age = ' + my_obj.age);
    var txt1 = '';
    var txt2 = '';
    var txt3 = '';
    var txt4 = '';
    for (var i in my_obj.others) {
        txt1 = 'food = "';
        for (k = 0; k < my_obj.others[i].length; k++) {
            txt1 += my_obj.others[i][k] + '; ';
        }
        txt1 += '"';
        txt2 = 'interests = "';
        for (j = 0; j < my_obj.others[i].length; j++) {
            txt2 += my_obj.others[i][j] + '; ';
        }
        txt2 += '"';
    }
    alert(txt1);
    alert(txt2);
    for (a =  0; a < my_obj.others.length; a++) {
        txt3 = 'food = "';
        for (b = 0; b < my_obj.others[a].length; b++) {
            txt3 += my_obj.others[a][b] + '; ';
        }
        txt3 += '"';
        txt4 = 'interests = "';
        for (c = 0; c < my_obj.others[a].length; c++) {
            txt4 += my_obj.others[a][c] + '; ';
        }
        txt4 += '"';
    }
    alert(txt3);
    alert(txt4);