fix missing onclick in ConfigPortal

to enable checkbox

htroot/ConfigPortal.html

@@ -53,7 +53,7 @@
           <img src="env/grafics/idea.png" width="32" height="32" alt="idea" align="center"/>Speed up search results with this option! (use CACHEONLY or FALSE to switch off verification)<br/>
           <input type="radio" name="search.verify" value="nocache" #(search.verify.nocache)#::checked="checked"#(/search.verify.nocache)# onclick="document.getElementById('search_verify_delete').disabled=false;document.getElementById('search_verify_delete').checked=true;"/> NOCACHE: no use of web cache, load all snippets online<br/>
           <input type="radio" name="search.verify" value="iffresh" #(search.verify.iffresh)#::checked="checked"#(/search.verify.iffresh)# onclick="document.getElementById('search_verify_delete').disabled=false;document.getElementById('search_verify_delete').checked=true;"/> IFFRESH: use the cache if the cache exists and is fresh otherwise load online<br/>
-          <input type="radio" name="search.verify" value="ifexist" #(search.verify.ifexist)#::checked="checked"#(/search.verify.ifexist)# /> IFEXIST: use the cache if the cache exist or load online<br/>
+          <input type="radio" name="search.verify" value="ifexist" #(search.verify.ifexist)#::checked="checked"#(/search.verify.ifexist)# onclick="document.getElementById('search_verify_delete').disabled=false;document.getElementById('search_verify_delete').checked=true;"/> IFEXIST: use the cache if the cache exist or load online<br/>
           <input type="checkbox" name="search.verify.delete" id="search_verify_delete" value="true" #(search.verify.delete)#::checked="checked"#(/search.verify.delete)# /> If verification fails, delete index reference<br/><br/>
           <input type="radio" name="search.verify" value="cacheonly" #(search.verify.cacheonly)#::checked="checked"#(/search.verify.cacheonly)# onclick="document.getElementById('search_verify_delete').disabled=true;document.getElementById('search_verify_delete').checked=false;"/> CACHEONLY: never go online, use all content from cache. If no cache entry exist, consider content nevertheless as available and show result without snippet<br/>
           <input type="radio" name="search.verify" value="false" #(search.verify.false)#::checked="checked"#(/search.verify.false)# onclick="document.getElementById('search_verify_delete').disabled=true;document.getElementById('search_verify_delete').checked=false;"/> FALSE: no link verification and not snippet generation: all search results are valid without verification