title: $.ajax( { async : false } ) request is still firing asynchronously?
body: <p>I got a little problem here guys. I'm trying to implement the following scenario: <br /></p>
  
  <ol>
  <li>A user opens the home page and sees a list of other users and clicks
  to add one to his friend list.</li>
  <li>I issue an Ajax request to a server resource to validate if the user
  is logged in, if so, I issue another ajax request to another server
  resource to actually add it to the user's friend list.</li>
  </ol>
  
  <p>Sounds simple? Here's what I've done: I created a function <code>isLoggedIn</code> that will issue the first request to the server in order to determine if the user is logged in. I issue this request using <code>jQuery.ajax</code> method. Here's my function looks like:</p>
  
  <pre><code>function isLoggedIn() {
  
      $.ajax({
      async: "false",
          type: "GET",
          contentType: "application/json; charset=utf-8",
          dataType: "json",
          url: "/isloggedin",
          success: function(jsonData) {
              alert("jsonData =" + jsonData.LoggedIn);
              return jsonData.LoggedIn;
          }
      });
  }
  </code></pre>
  
  <p>The returned JSON is very simple, it looks like the following:</p>
  
  <pre><code>{ LoggedIn: true } or { LoggedIn : false } 
  </code></pre>
  
  <p>Now this method, actually works and displays the alert correctly: <code>JsonData = true</code> if logged in, and <code>JsonData = false</code> if not logged in.
  Up to this point there's no problem, the problem occurs when I try to call this method: I call it like so:</p>
  
  <pre><code>$(".friend_set .img").click(function() {
      debugger;
      if (isLoggedIn()) { 
  
          alert("alredy logged in");
          trackAsync();
          popupNum = 6;
      }
      else {
          alert("not logged in"); //always displays this message.
          popupNum = 1;
      }
      //centering with css
  
      centerPopup(popupNum);
      //load popup
      loadPopup(popupNum);
      return false;
  
  });
  </code></pre>
  
  <p>Calling <code>isLoggedIn</code> always returns <code>false</code>, and it returns <code>false before the ajax request finishes (because the message</code>jsonData = true<code>is displayed after the message "not logged in". I made sure that the request is **NOT** Asynchronous by stating</code>async: false`! </p>
  
  <p>Apparently it's still working asynchronously, though. What am I missing here guys? </p>