code: function( indices ) {
  			// If no arguments, return a clone of the children array.
  			if ( arguments.length < 1 )
  				return this._.children.concat();
  
  			// If indices isn't array, make it one.
  			if ( !indices.splice )
  				indices = [ indices ];
  
  			// Retrieve the child element according to tree position.
  			if ( indices.length < 2 )
  				return this._.children[ indices[ 0 ] ];
  			else
  				return ( this._.children[ indices[ 0 ] ] && this._.children[ indices[ 0 ] ].getChild ) ? this._.children[ indices[ 0 ] ].getChild( indices.slice( 1, indices.length ) ) : null;
  		}
docs: Gets a child UI element inside this container.
  
  var checkbox = hbox.getChild( [0,1] );
  checkbox.setValue( true );
  
  @param {Array/Number} indices An array or a single number to indicate the child's
  position in the container's descendant tree. Omit to get all the children in an array.
  @returns {Array/CKEDITOR.ui.dialog.uiElement} Array of all UI elements in the container
  if no argument given, or the specified UI element if indices is given.