mapfile depends on the user action

[Tony Jolibois]

            Hi all,

Is there a simple way to modify the mapfile in fonction of the changes
of the user interface ?
Example, here is a raster layer :

LAYER
  NAME temperature
  TYPE raster
  STATUS OFF
  DATA
'http://opendap-dev.cls.fr:8480/thredds/dodsC/mercator_psy2v1_mersea_grid1o8_nat_best_estimate?temperature[0][1][lat][lon]'
  PROCESSING "SCALE=0,35"


CLASS
        NAME "(< 0)"
        EXPRESSION ([pixel] < 0)
        COLOR 0    0  131
END
etc...

The number in bold is the time step of an aggregation. I want to allow
the user to select the date of the temperature field, so I need to
change the mapfile.

If you have suggestions, it would be great !

Tony
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