pjax: Restore proper page titles

include/staff/header.inc.php

@@ -74,7 +74,8 @@
     foreach ($ost->getExtraHeaders() as $h) {
         if (strpos($h, '<script ') !== false)
             echo $h;
-    }
+    } ?>
+    <title><?php echo ($ost && ($title=$ost->getPageTitle()))?$title:'osTicket :: Staff Control Panel'; ?></title><?php
 } # endif X_PJAX ?>
     <ul id="nav">
 <?php include STAFFINC_DIR . "templates/navigation.tmpl.php"; ?>