Add collapse function to rows added later after document.ready

[pramach]

Hi
I have a page using this tool. Works really well & nice.
Thanks for.

On my page, I have multiple tbody tags including several rows, and collapse is done on my first row within each tbody.
As said, this works well.
Now I have a button on my page where user can add a set of rows wrapped by a tbody tag on request. (one button click = 1 tbody with several tr's).
As set of rows is quite complex, I do it via an ajax call.
Also this works well, except, I don't get the +/- signs into this rowset after inserting this new row set on my page.

Any proposed solution for this ?

In addition, assuming that there is a proposed solution for question above, even if default is >>startCollapsed: true,<< i want to open such new inserted towset open/not collapsed.

Any hint is welcome