fFile->cd();
char chname[100];
sprintf(chname,"Tree%d",id);
clayout = new TTreeStream(chname);
clayout->fId=id;
fDataLayouts->AddAt(clayout,entries);
fFile->cd();
char chname[100];
sprintf(chname,"Tree%d",id);
clayout = new TTreeStream(chname);
clayout->fId=id;
fDataLayouts->AddAt(clayout,entries);