docs: function(root, path)
  	{
  		var parent = root;
  		
  		if (path != null)
  		{
  			var tokens = path.split(mxCellPath.PATH_SEPARATOR);
  			
  			for (var i=0; i<tokens.length; i++)
  			{
  				parent = parent.getChildAt(parseInt(tokens[i]));
  			}
  		}
  		
  		return parent;
  	}