Template manger : Edit Style not working

replace:

\templates\hot_one_page\elements\menucfg.php with one in attachment.

Thanks a lot, issue is now solved !
What was the problem?

line 719, replaced:

var vals = "<?php echo $this->value; ?>".split("&");

with

var vals = <?php echo json_encode($this->value); ?>.split("&");