Can I get the ID of a gadget or popup as result of service?

[fmanniti]

Is it possible to identify a gadget or a popup and get the ID as result of a service?

It is also fine the HTML id.
I tried the jquery function .attr('id') but it doesn't work inside the service (or maybe I used it wrong).

What I want to know is, if I put three times the same gadget inside the dashboard, is there a way to identify each one with a different ID?

[PaiChung]

I think you might be able to somehow get it with the Expression Widget and then pass that into a service.

[fmanniti]

Yes the expression widget is the one I was trying but I don't know how to get it as output