External links in HTML interface are marked as external with small icon.

*) added new icon
*) added CSS rules to mark all external links except search results
(target="_self")

htroot/env/base.css

@@ -87,6 +87,18 @@ a:hover {
   text-decoration:underline;
 }
 
+/* mark external links */
+a[href^="http://"], a[href^="https://"]  {
+  background: url(/env/grafics/external.png) center right no-repeat;
+  padding-right: 14px;
+}
+
+/* exception for links to yacy.net and search results */
+a[href^="http://yacy.net"], a[target="_self"] {
+  background: transparent;
+  padding-right: 0px;
+}
+
 img {
   border:0;
 }

htroot/index.html

@@ -192,7 +192,7 @@
           <dt>browser integration</dt>
           <dd>after searching, click-open on the default search engine in the upper right search field of your browser and select 'Add "YaCy Search.."'</dd>
           <dt>search as rss feed</dt>
-          <dd>click on the red icon in the upper right after a search. this works good in combination with the '/date' ranking modifier. See an <a href="http://localhost:8090/yacysearch.rss?query=news+%2Fdate&Enter=Search&verify=cacheonly&contentdom=text&nav=hosts%2Cauthors%2Cnamespace%2Ctopics%2Cfiletype%2Cprotocol&startRecord=0&indexof=off&meanCount=5&maximumRecords=10&resource=global&prefermaskfilter=">example</a>.</dd>
+          <dd>click on the red icon in the upper right after a search. this works good in combination with the '/date' ranking modifier. See an <a href="yacysearch.rss?query=news+%2Fdate&Enter=Search&verify=cacheonly&contentdom=text&nav=hosts%2Cauthors%2Cnamespace%2Ctopics%2Cfiletype%2Cprotocol&startRecord=0&indexof=off&meanCount=5&maximumRecords=10&resource=global&prefermaskfilter=">example</a>.</dd>
           <dt>json search results</dt>
           <dd>for ajax developers: get the search rss feed and replace the '.rss' extension in the search result url with '.json'</dd>
         </dl>