Add rows to group after click to expand

shanii

Currently I am using dataTable with ajax. Because we have a large set of data, we want to just show the groups to user and after selecting the group , before expand that grioup, add <tr> and <td> to that section.

right now, each group has it's own dataTable.

How can I get the id of selected group in JavaScript when user select it to expand?

Thanks,
Shani