public Double get_count_sallary(int IdP)
    {
        Double result = 0.0;
        Double wage = 0.0;
        Double coeff = 0.0;

            wage = t_должностиID_to_t_должностиСтавка( t_должностьId_from_t_людиID(IdP) );
            coeff = get_coeffs_expertizes(IdP);
            
            if(wage<0.01) return 0.0;
            
            result = wage + wage*coeff;
            
            return result;

    }