Sending varibles into any cells from tree item

Hello,

Have a little problem, have layouts with 3 cells a, b, c in cell ‘c’ have tree menu connected with mysql (id, parentid, name) now what I wanna do. When I click on any item in my tree wanna see id, parented, name of this item in cell ‘b’. Question is simple how to sending variables into any cell.

Wanna do system of knowledge checking, so each item of the tree will be a test, when I click for example on programming, in celle b I will can see test(tests wanna do in php). When I will know how to sending varibles I’ll be able to do the same test module in php.

Example:

-Biology
human anatomy
plants
-IT
programing
administration

Below my code:

In test.php can’t do just $_POST[‘id’];

Thanks in advance for your help

Try to use:

b.attachURL('test.php?id='+id);