The application which I am working on is WEB application. What I want to do is replace some part(for example grid ) with grid written on SL.
The question is: If SL objects has its own thread for running its functionality or it is working with UI Thread of IE.
I will give you an example for explain myself:
You have a function in java script language:
Function someFunciton()
{
...
(1) Here I am creating the SL object dynamically and insert it into the html page
...
(2) Here I also have some functionality that does not depend on SL object(some changes in HTML page)
}

What I did, I put debugger on "Loaded" event of the SL Object and I saw that I stop with debugger just when " someFunciton " is finished. What I supposed to see was executing "Loaded" event while executing " someFunciton " function ((2) part). That’s what I meant when asked if SL object has its own thread and does not wait until UI thread is free.
Thanks
Polina