title: Partial PostBack without AJAX
body: <p>I want to silently check for Session existence without Posting back page by using AJAX Timer and AsyncPostBack Trigger.</p>
  
  <p>Now, I would like to know is there anyway to silently check whether ASP.NET C# <code>if (Session["email"] = null) { Response.Redirect("Logout.aspx"); }</code> something of this kind to check for every 10 seconds without Posting Back Page and without using AJAX by using something like jQuery or any other technology that is supported by .NET?</p>