TAB extension with infos about selection

[#1]

Hy,

I am pretty new to extensions ...

I want to set up n extension for a tabrow.

I started from  this example:

https://mindspank.wordpress.com/2012/07/16/document-extension-slide-out-tabrow/

and I modified both css and Script.js to add a sort of "Main Title Zone" in the tabrow area, by simply adding a DIV with some text.

Everything is fine, as long as I keep the title constant.

Now, I would like to add the following feature:

If i select 1 value for a given field "A", the selected value is shown in the "Main Title Zone."

How can I implement that?

I tried the GetCurrenteSelection method but I don't managed to make it work:

I can show an alert of the selection value but I don't manage the tabrow repainting with the new value...

Helpppppp