add err msg on failure during Load_rss

htroot/Load_RSS_p.html

@@ -59,7 +59,7 @@
           </dl>
           <input type="submit" name="indexAllItemContent" value="Add All Items to Index (full content of url)" />
           #(/showload)#</dd>
-	      
+          #(showerrmsg)#::<dd class="error">#[msgtxt]#</dd>#(/showerrmsg)#   
         </dl>
       </fieldset>
     </form>

htroot/Load_RSS_p.java

@@ -73,6 +73,7 @@ public class Load_RSS_p {
         prop.put("shownewfeeds", 0);
         prop.put("showscheduledfeeds", 0);
         prop.put("url", "");
+        prop.put("showerrmsg", 0);
         
         if (post != null && post.containsKey("removeSelectedFeedsNewList")) {
             for (final Map.Entry<String, String> entry: post.entrySet()) {
@@ -276,6 +277,8 @@ public class Load_RSS_p {
             rss = resource == null ? null : RSSReader.parse(RSSFeed.DEFAULT_MAXSIZE, resource);
         } catch (final IOException e) {
             ConcurrentLog.warn("Load_RSS", e.getMessage());
+            prop.put("showerrmsg", 1);
+            prop.put("showerrmsg_msgtxt", "no valid response from given url");
             return prop; // if no response nothing to process further
         }