void rootlogon() {

  gSystem->Load("libPhysics.so");


  gROOT->LoadMacro("plot.C");
  gROOT->LoadMacro("getparam.C");
  gROOT->LoadMacro("pcorrel.C");
  gROOT->LoadMacro("pcorrel_old.C");

  gROOT->LoadMacro("gpNtuple.C");
  gROOT->LoadMacro("lumi.C");
  gROOT->LoadMacro("spectra.C");
  gROOT->LoadMacro("spectramany.C");
  gROOT->LoadMacro("fitfuncs.C");
  gROOT->LoadMacro("gpoutangles.C");

  gROOT->LoadMacro("bhwAnal.C");
  gROOT->LoadMacro("bhwAnalClass.C");
  gROOT->LoadMacro("bhwPlots.C");
  gROOT->LoadMacro("bhwNtuple.C");

  gROOT->LoadMacro("top-mc.C");


  gROOT->SetStyle("Plain");
  gStyle->SetOptTitle(1);
  gStyle->SetOptStat(1);

  //margins etc
//    gStyle->SetTitleXOffset(2);
//    gStyle->SetTitleYOffset(2);
  gStyle->SetPadTopMargin(0.125);
  gStyle->SetPadRightMargin(0.125);
  gStyle->SetPadLeftMargin(0.125);
  gStyle->SetPadBottomMargin(0.25);
  gStyle->SetTitleXOffset(1);
  gStyle->SetTitleYOffset(1);
  gROOT->ForceStyle();

}