--- /local/home/julien/tmp/untitled folder/user.js.origin 
+++ /local/home/julien/tmp/untitled folder/user.js 
@@ -142,6 +142,11 @@
           input.value = 'PASSWORD';
           _window.runtime_initPassword('field_' + fieldName);
         }
+        else if (_document.getElementById(elt.id+'_checkbox') != null)
+        {
+          var checkboxElt = _document.getElementById(elt.id+'_checkbox');
+          checkboxElt.checked = fieldValue == "true" ? true : false;
+        }
       }
     }