diff --git a/admin_cronjobs.php b/admin_cronjobs.php
index fe255362..cb6cf445 100644
--- a/admin_cronjobs.php
+++ b/admin_cronjobs.php
@@ -39,8 +39,9 @@ if ($page == 'cronjobs' || $page == 'overview') {
 		 * @TODO Fix sorting
 		 */
 		$crons = '';
-		$result = $db->query("SELECT `c`.* FROM `" . TABLE_PANEL_CRONRUNS . "` `c` ORDER BY `cronfile` ASC");
-		$paging->setEntries($db->num_rows($result));
+		$result_stmt = Database::prepare("SELECT `c`.* FROM `" . TABLE_PANEL_CRONRUNS . "` `c` ORDER BY `cronfile` ASC");
+		Database::pexecute($result_stmt);
+		$paging->setEntries(Database::num_rows());
 		$sortcode = $paging->getHtmlSortCode($lng);
 		$arrowcode = $paging->getHtmlArrowCode($filename . '?page=' . $page . '&s=' . $s);
 		$searchcode = $paging->getHtmlSearchCode($lng);
@@ -49,7 +50,7 @@ if ($page == 'cronjobs' || $page == 'overview') {
 		$i = 0;
 		$count = 0;
 
-		while ($row = $db->fetch_array($result)) {
+		while ($row = $result_stmt->fetch(PDO::FETCH_ASSOC)) {
 			if ($paging->checkDisplay($i)) {
 				$row = htmlentities_array($row);
 
@@ -72,7 +73,9 @@ if ($page == 'cronjobs' || $page == 'overview') {
 		 * @TODO later
 		 */
 	} elseif ($action == 'edit' && $id != 0) {
-		$result = $db->query_first("SELECT * FROM `" . TABLE_PANEL_CRONRUNS . "` WHERE `id`='" . (int)$id . "'");
+		$result_stmt = Database::prepare("SELECT * FROM `" . TABLE_PANEL_CRONRUNS . "` WHERE `id`= :id");
+		Database::pexecute($result_stmt, array('id' => $id));
+		$result = $result_stmt->fetch(PDO::FETCH_ASSOC);
 		if ($result['cronfile'] != '') {
 			if (isset($_POST['send']) && $_POST['send'] == 'send') {
 				$isactive = isset($_POST['isactive']) ? 1 : 0;
@@ -85,10 +88,12 @@ if ($page == 'cronjobs' || $page == 'overview') {
 
 				$interval = $interval_value . ' ' . strtoupper($interval_interval);
 
-				$db->query("UPDATE `" . TABLE_PANEL_CRONRUNS . "` 
-							SET `isactive` = '".(int)$isactive."',
-							`interval` = '".$interval."'
-							WHERE `id` = '" . (int)$id . "'");
+				$upd = Database::prepare("
+					UPDATE `" . TABLE_PANEL_CRONRUNS . "`
+					SET `isactive` = :isactive, `interval` = :int
+					WHERE `id` = :id"
+				);
+				Database::pexecute($upd, array('isactive' => $isactive, 'int' => $interval, 'id' => $id));
 
 				redirectTo($filename, Array('page' => $page, 's' => $s));
 			} else {
diff --git a/lib/classes/database/class.Database.php b/lib/classes/database/class.Database.php
index 3cb214ee..bbab5248 100644
--- a/lib/classes/database/class.Database.php
+++ b/lib/classes/database/class.Database.php
@@ -53,6 +53,15 @@ class Database {
 		}
 	}
 
+	/**
+	 * returns the number of found rows of the last select query
+	 *
+	 * @return int
+	 */
+	public static function num_rows($stmt) {
+		return Database::query("SELECT FOUND_ROWS()")->fetchColumn();
+	}
+
 	/**
 	 * let's us interact with the PDO-Object by using static
 	 * call like "Database::function()"
@@ -165,7 +174,7 @@ class Database {
 		 * log to a file, so we can actually ask people for the error
 		 * (no one seems to find the stuff in the syslog)
 		*/
-		$sl_dir = makeCorrectDir(dirname(dirname(dirname(dirname(__FILE__))))."/logs/");
+		$sl_dir = makeCorrectDir(FROXLOR_INSTALL_DIR."/logs/");
 		if (!file_exists($sl_dir)) {
 			@mkdir($sl_dir, 0755);
 		}