Configuration for the web site search.

SiteSearchIndex.WebConfiguration.config

<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/">
   <sitecore>
      <contentSearch>
         <indexConfigurations>
            <sitesearchWebConfiguration type="Sitecore.ContentSearch.LuceneProvider.LuceneIndexConfiguration, Sitecore.ContentSearch.LuceneProvider">
               <indexAllFields>false</indexAllFields>
               <initializeOnAdd>true</initializeOnAdd>
               <analyzer ref="contentSearch/indexConfigurations/defaultLuceneIndexConfiguration/analyzer" />
               <fieldMap type="Sitecore.ContentSearch.FieldMap, Sitecore.ContentSearch">
                  <fieldNames hint="raw:AddFieldByFieldName">
                     <field fieldName="_uniqueid"            storageType="YES" indexType="TOKENIZED"    vectorType="NO" boost="1f" type="System.String" settingType="Sitecore.ContentSearch.LuceneProvider.LuceneSearchFieldConfiguration, Sitecore.ContentSearch.LuceneProvider">
                        <analyzer type="Sitecore.ContentSearch.LuceneProvider.Analyzers.LowerCaseKeywordAnalyzer, Sitecore.ContentSearch.LuceneProvider" />
                     </field>
                     <field fieldName="pagecontentfield" storageType="YES" indexType="TOKENIZED" vectorType="NO" boost="1f" type="System.String" settingType="Sitecore.ContentSearch.LuceneProvider.LuceneSearchFieldConfiguration, Sitecore.ContentSearch.LuceneProvider">
                        <Analyzer type="Sitecore.ContentSearch.LuceneProvider.Analyzers.LowerCaseKeywordAnalyzer, Sitecore.ContentSearch.LuceneProvider" />
                     </field>
                  </fieldNames>
               </fieldMap>

               <fields hint="raw:AddComputedIndexField">
                  <field fieldName="pagecontentfield">YOURNAMESPACE.PageContentField, YOURASSEMBLY</field>
               </fields>

               <fieldReaders ref="contentSearch/indexConfigurations/defaultLuceneIndexConfiguration/fieldReaders"/>
               <indexFieldStorageValueFormatter ref="contentSearch/indexConfigurations/defaultLuceneIndexConfiguration/indexFieldStorageValueFormatter"/>
               <indexDocumentPropertyMapper ref="contentSearch/indexConfigurations/defaultLuceneIndexConfiguration/indexDocumentPropertyMapper"/>
               <documentBuilderType>Sitecore.ContentSearch.LuceneProvider.LuceneDocumentBuilder, Sitecore.ContentSearch.LuceneProvider</documentBuilderType>
            </sitesearchWebConfiguration>
         </indexConfigurations>
      </contentSearch>
   </sitecore>
</configuration>