void bad_titles() {
  TH1F* hh = new TH1F("hh","StEMB globtrk: tanl(dip) vs. (zfirst-zvtx)/arc length, tpc,tpc+svt",5,0,1);

  TCanvas* c2 = new TCanvas("CanvasName","Canvas Title",600,780);
  TPad *c1 = new TPad("PadName","Pad Title",0.0,0.05,1.00,0.95);
  c1->Draw();


  for (int dd = 1; dd<=4; dd++) {
    c1->Clear();c1->Divide(2,dd);
    c1->cd(1);hh->Draw();
    gPad->Update();
    c2->SaveAs(Form("pads2x%d.ps",dd));
  }
}