Only offer yearly overview graphs for years for which graphs exist

diff --git a/src/Infodrom/webstats/submenu.inc b/src/Infodrom/webstats/submenu.inc
index 4681816..e9fd850 100644 (file)
--- a/src/Infodrom/webstats/submenu.inc
+++ b/src/Infodrom/webstats/submenu.inc
@@ -22,6 +22,8 @@
 <?
   if (!empty($site)) {
     for ($anno = $minyear; $anno <= $maxyear; $anno++) {
+      $graphs = glob(sprintf('%s/access-%04d-*.png', $site, $anno));
+      if (count($graphs))
        printf ('&nbsp;<a href="view.php?type=%s&site=%s&year=%04d">%04d</a><br>',
          $type, urlencode($site), $anno, $anno);
     }