logical display_on, print_on, summary_on, fixed_length,
     1		full_screen,too_big,readin,echo_on,logging,log_open,
     2		bad_file_open,variable

	integer	scratch_variable

	common /flags/ display_on,print_on,summary_on,full_screen,
     1		       readin,echo_on,logging,log_open,bad_file_open,
     2		       variable,scratch_variable