# Function: date_ax

## CALL:

date_ax(xa, ya, postprocess)

## DESCRIPTION:

Supply a number of axes with date ticks

## INPUT:

       xa: x axes handles
       ya: y axes handles
       postproces: optional boolean, default true.
                   If true update add day, month and year to first tick and
                   to ticks where day month and year change.

locale | any |
    string with language, e.g. it, es, nl, en, de, fr or zh

## OUTPUT:

       none

## EXAMPLE:

          plot ....
          %install zoom with date_ax
          hax=gca;
          opt.move=@(o,e)date_ax(hax);
          zoomtool(1,opt);
          date_ax(hax);

## APPROACH:

      It is assumed that data are specified in datenum format