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        private void button1_Click(object sender, EventArgs e)
        {
            string ime = textBox1.Text;

            var kolekcija1 = Properties.Settings.Default.Doktori;
            var kolekcija2 = Properties.Settings.Default.brojki;

            string broj = "";
            foreach (string doktor in Properties.Settings.Default.Doktori)
            {
                broj = kolekcija2[Properties.Settings.Default.Doktori.IndexOf(doktor)];

                string url = "http://mojtermin.mk/api/pp/resources/" + broj + "/slots_availability";

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                string res = Convert.ToString(new StreamReader(request.GetResponse().GetResponseStream()).ReadToEnd());

                MessageBox.Show(res);

                if (res.Contains("true") && Properties.Settings.Default.imat[Properties.Settings.Default.Doktori.IndexOf(doktor)] != "imat")
                {
                    Properties.Settings.Default.imat[Properties.Settings.Default.Doktori.IndexOf(doktor)] = "imat";
                    try
                    {
                        string prakac = "arsova2@gmail.com";
                        string primac = prakac;
                        using (MailMessage mm = new MailMessage(prakac, primac))
                        {
                            mm.Subject = "СЛОБОДЕН ТЕРМИН";
                            mm.Body = "Има слободен термин кај Д-р " + doktor + ".";
                            mm.IsBodyHtml = true;
                            SmtpClient smtp = new SmtpClient();
                            smtp.Host = "smtp.gmail.com";
                            NetworkCredential credential = new NetworkCredential();
                            credential.UserName = "arsova2@gmail.com";
                            credential.Password = "Suze55PC";
                            smtp.UseDefaultCredentials = true;
                            smtp.Credentials = credential;
                            smtp.Port = 587;
                            smtp.EnableSsl = true;
                            smtp.Send(mm);
                        }
                    }
                    catch (Exception ex)
                    {

                    };
                    MessageBox.Show("Има слободен термин кај Д-р " + doktor + ".", "Слободен термин", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }
            }

            System.Threading.Thread.Sleep(900000);
        }