diff --git a/lib/common.lib.php b/lib/common.lib.php
index 747e8580b..0d3ad98d4 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1909,6 +1909,12 @@ function get_selected($field, $value)
 }
 
 
+function get_checked($field, $value)
+{
+    return ($field==$value) ? ' checked="checked"' : '';
+}
+
+
 function is_mobile()
 {
     return preg_match('/'.G5_MOBILE_AGENT.'/i', $_SERVER['HTTP_USER_AGENT']);