private void SA_Enter(object sender, EventArgs e)
{
vm_saved = VM.Text;
fm_saved = FR.Text;
jh_saved = JH.Text;
jd_saved = JD.Text;
sv_saved = SV.Text;
lv_saved = LV.Text;
lb_saved = LB.Text;
zb_saved = ZB.Text;
tm_saved = TM.Text;
jm_saved = JM.Text;
ra_saved = RA.Text;
}