you don't need a search tab.
webhelp.include.search.tab=true

# indexer-language is used to tell the search indexer which language
# the docbook is written.  This will be used to identify the correct
# stemmer, and punctuations that differs from language to language.
# see the documentation for details. en=English, fr=French, de=German,
# zh=Chinese, ja=Japanese etc.  
webhelp.indexer.language=en</pre></li><li class="step" title="Step 5"><p>Test the package by running the command <code class="code">ant webh