How to differ sessions in browser-tabs?

Question

In a web-application implemented in java using JSP and Servlets; if I store information in the user session, this information is shared from all the tabs from the same brows

Answer 1

In javascript, how can I uniquely identify one browser window from another which are under the same cookiedbased sessionId

Essentially use window.name. If its not set, set it to a unique value and use it. It will be different across tabs that belong to same session.