code: function(p_sType, p_aArgs) {
              Event.removeFocusListener(document.documentElement, this._onElementFocus, this);
  
              if (_currentModal == this) {
                  _currentModal = null;
              }
          }
docs: @method _removeFocusHandlers
  @protected
  
  "hideMask" event handler that removes all "focus" event handlers added
  by the "addFocusEventHandlers" method.
  
  @param p_sType {String} Event type
  @param p_aArgs {Array} Event Arguments