如何删除OpensourcePOS中提供的页脚？

I wonder how can I remove footer option saying "Your are using Open Source POS Version blah blah". I've already tried to edit files but after saving and restarting server UI get blocked. that means we can't change in footer. is there anyway to edit this option without blocking UI?

The footer signature "You are using Open Source Point Of Sale" with version, hash and link to the original distribution of the code MUST BE RETAINED, MUST BE VISIBLE IN EVERY PAGE and CANNOT BE MODIFIED.

Better leave it as it is. Someone went through a lot of trouble making it work, and lets you use it for free. Donate instead of altering stuff you are not supposed to touch.

Please Just add this in application/views/partial/header.php

      <script type="text/javascript">
        $(document).ready(function() {
        $('.blockUI').remove();
        });
      </script>

Problem Solved :)