Any way to identify browser tab in JavaScript?

Question

I need to be able to identify what tab I am in within the browser. Isn\'t there some bit of information I can get from the browser to identify the tab? I don\'t need to kn

Answer 1

Since I don't have find no simple Javascript function as windows.currentTabIndex, I have written some lines of Javascript to fix an ID on each browser tabs when they are loaded.

function defineTabID()
    {
    var iPageTabID = sessionStorage.getItem("tabID");
      // if it is the first time that this page is loaded
    if (iPageTabID == null)
        {
        var iLocalTabID = localStorage.getItem("tabID");
          // if tabID is not yet defined in localStorage it is initialized to 1
          // else tabId counter is increment by 1
        var iPageTabID = (iLocalTabID == null) ? 1 : Number(iLocalTabID) + 1;
          // new computed value are saved in localStorage and in sessionStorage
        localStorage.setItem("tabID",iPageTabID);
        sessionStorage.setItem("tabID",iPageTabID);
        }
    }

This code save last tab's index in localStorage to update current value for new tabs and in sessionStorage to fix page's id !

I must call defineTabId() function in each pages of my application. Since I develop using a JSF templates, this is only defined in only one place :-)