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-rw-r--r--includes/tablesort.inc7
1 files changed, 6 insertions, 1 deletions
diff --git a/includes/tablesort.inc b/includes/tablesort.inc
index d41c3aab3..43edc5fc3 100644
--- a/includes/tablesort.inc
+++ b/includes/tablesort.inc
@@ -112,7 +112,12 @@ function tablesort_header($cell, $header, $ts) {
function tablesort_cell($cell, $header, $ts, $i) {
if ($header[$i]['data'] == $ts['name'] && $header[$i]['field']) {
if (is_array($cell)) {
- $cell['class'] .= ' active';
+ if (isset($cell['class'])) {
+ $cell['class'] .= ' active';
+ }
+ else {
+ $cell['class'] = 'active';
+ }
}
else {
$cell = array('data' => $cell, 'class' => 'active');