nl_tokens: Create or get a namespace by a namespace defined as string
pl_tokens: function resolveNamespace ( sNamespace ) { var oObj = root , aElements = sNamespace . <mask> ( '.' ) , sElement ; while ( ! ! ( sElement = aElements . shift ( ) ) ) { oObj = oObj [ sElement ] !== und ? oObj [ sElement ] : oObj [ sElement ] = { } ; } return oObj ; }