code: def setTabURLs(tabs, webTranslator):
      
  
      for tab in tabs:
          if not tab.linkURL:
              tab.linkURL = webTranslator.linkTo(tab.storeID)
          setTabURLs(tab.children, webTranslator)
docs: Sets the C{linkURL} attribute on each L{Tab} instance
      in C{tabs} that does not already have it set
  
      @param tabs: sequence of L{Tab} instances
      @param webTranslator: L{xmantissa.ixmantissa.IWebTranslator}
                            implementor
  
      @return: None