Binding of tablesorter in easytabs not working for several tables.

Binding of tablesorter in easytabs not working for several tables.

I would like to have one tableSorter per tab in the content.
Binding is only possible for one tab. In the other tabs, the table is hidden when using tablesorter.

and here my try with tableSorter:

fiddle (with tableSorter)

What is wrong in the script and to do that tableSorter working for every tab.
I do not get any error message or hint in the console.