Calls the thm_tselect widget, returns the value.. 16-jul-2007, jmm added the init_time input $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_tselect_fn.pro $