add two helper account access levels:

 - read only - can't subscribe to more feeds, feed updates are skipped
 - disabled - can't login
define used access levels as UserHelper constants and refactor code to
use them instead of hardcoded numbers

1 files changed, 1 insertions, 1 deletions

diff --git a/prefs.php b/prefs.php
index 14820f707..84d89f914 100644
--- a/prefs.php
+++ b/prefs.php
@@ -148,7 +148,7 @@
             style="padding : 0px"
             href="backend.php?op=pref-labels"
             title="<i class='material-icons'>label_outline1</i> <?= __('Labels') ?>"></div>
-        <?php if ($_SESSION["access_level"] >= 10) { ?>
+        <?php if ($_SESSION["access_level"] >= UserHelper::ACCESS_LEVEL_ADMIN) { ?>
             <div id="usersTab" dojoType="dijit.layout.ContentPane"
                 style="padding : 0px"
                 href="backend.php?op=pref-users"