private void btnServ_Click(object sender, EventArgs e)
        {
            Form fServis = new Servis(_user);

            ActiveForm.Hide();
            fServis.Show();
            fServis.Location = this.Location;
        }
        //vraca stanje forme na pocetno
        public static int Pocetna(Servis reference)
        {
            reference.rBman.Enabled  = true;
            reference.rBman.Visible  = true;
            reference.rBsas.Enabled  = true;
            reference.rBsas.Visible  = true;
            reference.label1.Visible = true;
            reference.label2.Visible = true;
            reference.label3.Visible = true;
            reference.label4.Visible = false;

            reference.cBgar.Enabled = true;
            reference.cBgar.Text    = "";
            reference.cBmod.Enabled = true;
            reference.cBmod.Text    = "";
            reference.cBtip.Enabled = true;
            reference.cBtip.Text    = "";
            reference.tBsas.Text    = "";
            reference.tBsas.Visible = false;
            reference.tBsas.Enabled = true;

            reference.btODA.Visible = true;
            reference.btODA.Enabled = true;

            reference.rBman.Checked = true;
            reference.rBsas.Checked = false;

            reference.checkBox1.Enabled = false;
            reference.checkBox1.Checked = false;
            reference.checkBox2.Enabled = false;
            reference.checkBox2.Checked = false;
            reference.checkBox3.Enabled = false;
            reference.checkBox3.Checked = false;
            reference.checkBox4.Enabled = false;
            reference.checkBox4.Checked = false;
            reference.checkBox5.Enabled = false;
            reference.checkBox5.Checked = false;
            reference.checkBox6.Enabled = false;
            reference.checkBox6.Checked = false;
            reference.checkBox7.Enabled = false;
            reference.checkBox7.Checked = false;
            reference.checkBox8.Enabled = false;
            reference.checkBox8.Checked = false;
            reference.checkBox9.Enabled = false;
            reference.checkBox9.Checked = false;

            reference.tBcij.Enabled   = false;
            reference.btNOVI.Visible  = false;
            reference.btNOVI.Enabled  = false;
            reference.btPRIHV.Visible = true;
            reference.btPRIHV.Enabled = false;


            return(0);
        }
        //dodavanje servisa u txt
        public static int AddServis(Servis reference, string path, string model, string cijena)
        {
            string lineToWrite = "";

            string[] att = { "Ne", "Ne", "Ne", "Ne", "Ne", "Ne", "Ne", "Ne", "Ne" };
            if (reference.checkBox1.Checked == true)
            {
                att[0] = "Da";
            }
            if (reference.checkBox2.Checked == true)
            {
                att[1] = "Da";
            }
            if (reference.checkBox3.Checked == true)
            {
                att[2] = "Da";
            }
            if (reference.checkBox4.Checked == true)
            {
                att[3] = "Da";
            }
            if (reference.checkBox5.Checked == true)
            {
                att[4] = "Da";
            }
            if (reference.checkBox6.Checked == true)
            {
                att[5] = "Da";
            }
            if (reference.checkBox7.Checked == true)
            {
                att[6] = "Da";
            }
            if (reference.checkBox8.Checked == true)
            {
                att[7] = "Da";
            }
            if (reference.checkBox9.Checked == true)
            {
                att[8] = "Da";
            }

            lineToWrite = model + " /" + "PR:" + att[0] + " /" + "TC:" + att[1] + " /" + "KS:" + att[2] + " /" + "ZS:" + att[3] + " /" + "PU:" + att[4] + " /" + "Z:" + att[5] + " /" + "ZP:" + att[6] + " /" + "S:" + att[7] + " /" + "G:" + att[8] + " /" + cijena;

            using (StreamWriter sw = new StreamWriter(path, true))
            {
                sw.WriteLine(lineToWrite);
            }

            AddServisListBox(reference, path);

            return(0);
        }
        //deaktiviranje checkboxova
        public static int Deactivate1(Servis reference)
        {
            reference.checkBox1.Enabled = false;
            reference.checkBox2.Enabled = false;
            reference.checkBox3.Enabled = false;
            reference.checkBox4.Enabled = false;
            reference.checkBox5.Enabled = false;
            reference.checkBox6.Enabled = false;
            reference.checkBox7.Enabled = false;
            reference.checkBox8.Enabled = false;
            reference.checkBox9.Enabled = false;

            return(0);
        }
        //dodavanje toga u listbox
        public static int AddServisListBox(Servis reference, string path)
        {
            using (StreamReader sr = new StreamReader(path))
            {
                reference.listBox1.Items.Clear();
                string line;

                while ((line = sr.ReadLine()) != null)
                {
                    reference.listBox1.Items.Add(line);
                }
            }

            return(0);
        }
        //odredjivanje tipa motora po broju sasije
        public static bool OdrediTipPoSasiji(Servis reference)
        {
            bool Diesel = false;

            if (reference.tBsas.Text[6] == 'Y')
            {
                Diesel = false;
            }
            else
            {
                Diesel = true;
            }

            return(Diesel);
        }
        //racunanje cijene checkboxova
        public static string ReturnCijena(Servis reference, string model, bool garancija)
        {
            double cijena   = 0;
            double modifier = 1;

            if (model == "A1")
            {
                modifier = 0.6;
            }
            else if (model == "A3")
            {
                modifier = 0.9;
            }
            else if (model == "A4")
            {
                modifier = 1.1;
            }
            else if (model == "A8")
            {
                modifier = 2.1;
            }
            else
            {
                modifier = 1.9;
            }

            if (reference.checkBox1.Checked == true)
            {
                cijena += 1450 * modifier;
            }
            if (reference.checkBox2.Checked == true)
            {
                cijena += 120 * modifier;
            }
            if (reference.checkBox3.Checked == true)
            {
                cijena += 2370 * modifier;
            }
            if (reference.checkBox4.Checked == true)
            {
                cijena += 820 * modifier;
            }
            if (reference.checkBox5.Checked == true)
            {
                cijena += 290 * modifier;
            }
            if (reference.checkBox6.Checked == true)
            {
                cijena += 980 * modifier;
            }
            if (reference.checkBox7.Checked == true)
            {
                cijena += 4500 * modifier;
            }
            if (reference.checkBox8.Checked == true)
            {
                cijena += 8620 * modifier;
            }
            if (reference.checkBox9.Checked == true)
            {
                cijena += 6310 * modifier;
            }

            if (garancija == true)
            {
                cijena = cijena - 0.7 * cijena;
            }

            return(cijena.ToString() + ",00 kn");
        }