<?xml version="1.0"  encoding="ISO-8859-1"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   <tree id="liste-taches" flex="1">
     <treecols>
            <treecol id="col-priorite" label="Priorité" flex="1" />
            <treecol id="col-description" label="Déscription" flex="4"/>
            <treecol id="col-effectue" label="Effectué" flex="1" />
     </treecols>
     <treechildren id="liste-donnees-taches" flex="1">

     </treechildren>
  </tree>
</window>