Client script to return user session time left

[xiaix]

Is there any javascript that I can put into a Client Script to get the logged in user's session time?

I'm currently doing this in some UI Pages:

var _oneHourTimer = 0;
var tickerSeconds = 3600;
startOneHourTimer();
function oneHourTimerTicker()
{
       var el = document.getElementById('sessionReminder');
       if (el)
               el.innerHTML = ("Your session will expire in " + (--tickerSeconds) + " seconds.");
       if (tickerSeconds == 600) // 10 minute warning
               alert("Your ServiceNow session will expire in 10 minutes.   Be sure to SUBMIT any unsaved form data.");
       if (tickerSeconds == 300) // 5 minute warning
               alert("Your ServiceNow session will expire in 5 minutes.   Be sure to SUBMIT any unsaved form data.");
       if (tickerSeconds == 60) // 1 minute warning
               alert("Your ServiceNow session will expire in 1 minute.   Be sure to SUBMIT any unsaved form data.");
}
function startOneHourTimer()
{
       var el = document.getElementById('sessionReminder');
       if (el)
               el.innerHTML = ("Your session will expire in 1 hour (" + tickerSeconds + " seconds)");
       _oneHourTimer = setInterval(function(){ oneHourTimerTicker(); }, 1000);
}

This works fine, but instead of a hard-set guestimation of 3600, I'd like to pull the actual session time left before ServiceNow logs them out.

Any way to pull that data?

[Jace Benson]

I would recommend using a new thread for this as then it's yours, you can attribute the correct answer and it will appear as not responded to.