Various small fixes.

diff --git a/feedmodel.cpp b/feedmodel.cpp
index 78c2f40..90f1a68 100644
--- a/feedmodel.cpp
+++ b/feedmodel.cpp
@@ -51,7 +51,7 @@ FeedModel::index(int row, int column, const QModelIndex &parent) const
                 return QModelIndex();
             else
             {
-                for(int i = 1; i < row; i++)
+                for(int i = 0; i < row; i++)
                 {
                     if (!query.next())
                         return QModelIndex();
diff --git a/mainwindow.cpp b/mainwindow.cpp
index d6a97bc..3174d4a 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -27,6 +27,7 @@ MainWindow::MainWindow(QWidget *parent) :
     ui->newsTableView->setColumnHidden(0, true); // ID
     ui->newsTableView->setColumnHidden(1, true); // Feed ID
     ui->newsTableView->setColumnHidden(3, true); // Link
+    ui->newsTableView->setColumnHidden(4, true); // Description
     ui->newsTableView->setColumnHidden(6, true); // Read state
     ui->newsTableView->verticalHeader()->setHidden(true);
 }
@@ -53,16 +54,27 @@ void Larss::MainWindow::on_feedTreeView_clicked(const QModelIndex &index)
 {
     // Trigger refresh of selected item
     rssParser->loadItem(index);
+
+    // Set the active filter
+    quint64 feed_id;
+    if ((feed_id = rssParser->getFeed (index)))
+    {
+        rssParser->selectActiveFeed(feed_id);
+    }
+
 }

 void Larss::MainWindow::on_newsTableView_clicked(const QModelIndex &index)
 {
+    // Get the number of the row, since index.row () is likely to change
+    // while we set the read status on the post.
+    quint32 row_number = index.row();
+
     // A row got activated, so open it in the webview.
     QString link = rssParser->getLink(index);
     ui->webView->load(link);
-    qDebug () << "Loading " << link;

     // And then mark it as read
     rssParser->setReadStatus(index, true);
-    ui->newsTableView->selectRow(index.row());
+    ui->newsTableView->selectRow(row_number);
 }
diff --git a/rssparser.cpp b/rssparser.cpp
index b9d87dc..81f9ae9 100644
--- a/rssparser.cpp
+++ b/rssparser.cpp
@@ -207,3 +207,20 @@ Larss::RssParser::setReadStatus(const QModelIndex& index, bool read)
     QModelIndex read_index = createIndex(index.row(), 6, index.internalPointer());
     setData(read_index, read ? 1 : 0);
 }
+
+quint64
+Larss::RssParser::getFeed(const QModelIndex &index)
+{
+    quint64 id = index.internalId();
+    if (id < FEEDMODEL_MAX_CATEGORIES)
+        return 0;
+    else
+        return (id - FEEDMODEL_MAX_CATEGORIES);
+}
+
+void
+Larss::RssParser::selectActiveFeed(quint64 feed_id)
+{
+    // Show only the news from the given feed
+    setFilter(QString("feed='%1'").arg(feed_id + FEEDMODEL_MAX_CATEGORIES));
+}
diff --git a/rssparser.h b/rssparser.h
index 8ee69f4..1a2a732 100644
--- a/rssparser.h
+++ b/rssparser.h
@@ -40,6 +40,13 @@ namespace Larss {
         QString getLink (const QModelIndex& index);

         /**
+         * @brief Get the id of the feed pointed by the QModelIndex or
+         * 0 if there is no feed pointed (i.e. is a category or
+         * the root of the tree).
+         */
+        quint64 getFeed (const QModelIndex& index);
+
+        /**
          * @brief Set the read status on a news.
          */
         void setReadStatus (const QModelIndex& index, bool read);
@@ -49,6 +56,11 @@ namespace Larss {
          */
         QVariant data(const QModelIndex &idx, int role) const;

+        /**
+         * @brief Set the active category to display.
+         */
+        void selectActiveFeed (quint64 feed_id);
+

     signals: