class AliGenEMCocktail: public AliGenCocktail

 Constructor

 Destructor

 create and add sources to the cocktail

 add sources to the cocktail

 Initialisation

 Generate event

 This function allows to select the particle which should be procude based on 1 Integer value
 this integer value is then bitwise compare to the values in SelectParticle
 Examples:
 a) you would like to switch on: pi0, eta, rho0, omega, eta', phi, jpsi, sigma0 and all deltas
    implies you want the binary number: 00 1111 0100 0111 1111 =
	  which translates 62591_10 (in decimal) and F47F_16 (in hexadecimal)
 b) you would like to switch on: pi0, eta, rho0, omega, eta', phi, sigma0 and
    implies you want the binary number: 00 0000 0100 0011 1111 =
	  which translates 1087_10 (in decimal) and 43F_16 (in hexadecimal)
 c) you would like to switch on: pi0, eta, rho0, omega, eta', phi, sigma0 and all deltas
    implies you want the binary number: 00 1111 0100 0011 1111 =
	  which translates 62527_10 (in decimal) and F43F_16 (in hexadecimal)
 d) you would like to switch on: pi0, eta, rho0, omega, eta', phi
    implies you want the binary number: 00 0000 0000 0011 1111 =
	  which translates 63_10 (in decimal) and 3F_16 (in hexadecimal)