function OpenAddMaster(mdbid, item, fid) {
  AM_window = (window.open(mdbid + "?a=GenNewRecord&bg=1", "_blank", "width=740,height=415,scrollbars,resizable"));
  if (!AM_window || AM_window.closed) {
    return
  }
  masterDBID = mdbid;
  detailRPfids = fid;
  if (item == null) {
    dsel = theRPselect;
    dselIsRecordPicker = true
  } else {
    dsel = item;
    dsel.selectedIndex = 0;
    dselIsRecordPicker = false
  }
  AM_window.focus();
  window.setTimeout(UpdateDetailPage, 50)
}