/* axis style to integer */
_asty2si(s)
{
        local p;

        switch (s)
        {
                case _ax0:
                        p = 0;
                        break;

                case _ax1:
                default:
                        p = 1;
                        break;

                case _ax2:
                        p = 2;
                        break;

                case _ax3:
                        p = 3;
                        break;

                case _ax4:
                        p = 4;
                        break;

                case _ax5:
                        p = 5;
                        break;

                case _ax6:
                        p = 6;
                        break;

                case _ax7:
                        p = 7;
                        break;

                case _ax8:
                        p = 8;
                        break;

                case _ax9:
                        p = 9;
                        break;

                case _ax10:
                        p = 10;
                        break;

                case _ax11:
                        p = 11;
                        break;

                case _ax12:
                        p = 12;
                        break;

                case _ax13:
                        p = 13;
                        break;

                case _ax14:
                        p = 14;
                        break;

                case _ax15:
                        p = 15;
                        break;

                case _ax16:
                        p = 16;
                        break;
        }

        return(p);
}