--- a/src/browser/constants.py	Wed Jun 04 00:22:00 2014 +0200
+++ b/src/browser/constants.py	Wed Jun 04 00:23:14 2014 +0200
@@ -17,8 +17,23 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from libervia.common import constants
+from libervia.common.constants import Const as C
+
+
+# Auxiliary functions
+param_to_bool = lambda value: value == 'true'
 
 
-class Const(constants.Const):
+class Const(C):
     """Add here the constants that are only used by the browser side."""
+
+    # Parameters that have an incidence on UI display/refresh:
+    #     - they can be any parameter (not necessarily specific to Libervia)
+    #     - 'cast_from_str' is a method used to eventually convert to a non string type
+    #     - 'initial_value' is used to initialize the display before any profile connection
+    UI_PARAMS = {"unibox": {"name": C.ENABLE_UNIBOX_PARAM,
+                            "category": C.COMPOSITION_KEY,
+                            "cast_from_str": param_to_bool,
+                            "initial_value": False
+                             },
+                 }