FUNCTION :  ETA[cuspORDS] -  Computes the order at each cusp

CALLING SEQUENCE :  cuspORDS()                                    
                    cuspORDS(etaprod,CUSPS,N)                                    

PARAMETERS :
   etaprod - eta-quotient                                    
   CUSPS -  list of cusps of GAMMA0(N)                        
   N     -  postive integer                                  

GLOBAL VARIABLES : toterror

SYNOPSIS :   
   Computes the order at each cusp z with respect to the group
   G= GAMMA_0(N) of the given etaproduct f.                 
   A list [[cusp1, ORD1], [cusp2, ORD2], ...] is returned.  
   Global variable toterror (total ORD) should be zero.  
   

EXAMPLES :   

DISCUSSION :

SEE ALSO :