*-- Author : S.Burke
      SUBROUTINE FFNUM(JTYPE,JHIT,ITRUE)
**********************************************************************                                        
*                                                                    *                                        
* Count the number of hits for each track                            *                                        
*                                                                    *                                        
* JTYPE is 1 for planars and 2 for radials.                          *                                        
* JHIT is the row number in the FRsX bank.                           *                                        
* ITRUE is an array which counts the number of hits for each STR.    *                                        
*                                                                    *                                        
**********************************************************************                                        
*KEEP,FKNPL.                                                                                                  
*                                                                                                             
* Per-track values can go in H1WORK; note that LTRUE and LFIRST must                                          
* be set at least per event.                                                                                  
*                                                                                                             
* This is about 36k words long; the remaining common blocks are                                               
* about 3.6k in total. Some of this could be in /H1WORK/, but the                                             
* blocks would have to be reorganised.                                                                        
*                                                                                                             
* /FKPROJ/                                                                                                    
* /FKFILT/                                                                                                    
* /FKSMTH/                                                                                                    
* /FKINT/                                                                                                     
* /FKRSID/                                                                                                    
* /FKTRUE/                                                                                                    
* /FKDBG/                                                                                                     
*KEEP,FFWBI.                                                                                                  
* Work bank indices (note that INDKTR is *NOT* a work bank index!)                                            
*KEEP,BCS.                                                                                                    
*KEEP,STFUNCT.                                                                                                
*     index of element before row number IROW                                                                 
*     index of L'th element  of row number IROW                                                               
*     L'th integer element of the IROW'th row of bank with index IND                                          
*     L'th real element of the IROW'th row of bank with index IND                                             
*KEND.                                                                                                        
**********************************************************************                                        
* True hits only                                                                                              
* See if this track has been seen before ...                                                                  
* ... and increment the counter                                                                               
*