NAME: thm_ui_set_active_dset PURPOSE: sets active datasets in themis GUI to given tplot varnames, used in the call_tplot widget. CALLING SEQUENCE: ss = thm_ui_set_active_dset(gui_id, active_names) INPUT: gui_id = the widget id for the master widget active_names = the tplot variable names OUTPUT: ss = the subscripts of the valid active varnames in the full tnames() array HISTORY: 22-jan-2007, jmm, jimm@ssl.berkeley.edu 27-feb-2007, jmm, removed call to set_state_ptrs routine 10-may-2007, jmm, changed argument list, to use the GUI_ID and not the state structure 7-may-2008, jmm, Slight change to avoid putting in invalid names $LastChangedBy: cgoethel $ $LastChangedDate: 2008-07-08 08:41:22 -0700 (Tue, 08 Jul 2008) $ $LastChangedRevision: 3261 $ $URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/trunk/projects/themis/deprecated/thm_ui/thm_ui_set_active_dset.pro $