+#include "AliRunLoader.h"
+
+//______________________________________________________________________
+void AliITSVertexer::Init(TString filename){
+ // Initialize the vertexer in case of
+ // analysis of an entire file
+ AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ if(!rl){
+ Fatal("AliITSVertexer","Run Loader not found");
+ }
+ if (fLastEvent < 0) SetLastEvent(rl->GetNumberOfEvents()-1);
+
+ AliITSLoader* itsloader = (AliITSLoader*) rl->GetLoader("ITSLoader");
+ if(!filename.Contains("default"))itsloader->SetVerticesFileName(filename);
+ if(!filename.Contains("null"))itsloader->LoadVertices("recreate");
+}