function facebook_onload(already_logged_into_facebook) {
  // user state is either: has a session, or does not.
  // if the state has changed, detect that and reload.
  FB.ensureInit(function() {
      FB.Facebook.get_sessionState().waitUntilReady(function(session) {
          var is_now_logged_into_facebook = session ? true : false;

          // if the new state is the same as the old (i.e., nothing changed)
          // then do nothing
          if (is_now_logged_into_facebook == already_logged_into_facebook) {
            return;
          }

          // otherwise, refresh to pick up the state change
          set_cookies_and_refresh();
        });
    });
}

/*
 * Our <fb:login-button> specifies this function in its onlogin attribute,
 * which is triggered after the user authenticates the app in the Connect
 * dialog and the Facebook session has been set in the cookies.
 */
function facebook_onlogin_ready() {
	set_cookies_and_refresh();
}

function set_cookies_and_refresh() {
	setCookie('FBLoggedIn', 1, 60*60*24*30);
	document.location.reload();
}

function logOut() {
	setCookie('FBLoggedIn', 1, -1);
	document.location.href = '/logoff';
}

function setCookie(name, value, time)
{
	if (!time) time = 60*60*24*365;
	
	var d = new Date();
	var t = new Date(d.getTime() + time);
	t = t.toGMTString();
	document.cookie = name + "=" + escape(value) + ";expires=" + t + ";path=/;domain=.everestelc.com";
}


/*
 * Prompts the user to grant a permission to the application.
 */
function facebook_prompt_permission(permission) {
  FB.ensureInit(function() {
    FB.Connect.showPermissionDialog(permission);
  });
}

/*
 * Show the feed form. This would be typically called in response to the
 * onclick handler of a "Publish" button, or in the onload event after
 * the user submits a form with info that should be published.
 *
 */
function facebook_publish_feed_story(form_bundle_id, template_data) {
  // Load the feed form
  FB.ensureInit(function() {
          FB.Connect.showFeedDialog(form_bundle_id, template_data);

      // hide the "Loading feed story ..." div
      $('feed_loading').style.visibility = "hidden";
  });
}

/*
 * If a user is not connected, then the checkbox that says "Publish To Facebook"
 * is hidden in the "add run" form.
 *
 * This function detects whether the user is logged into facebook but just
 * not connected, and shows the checkbox if that's true.
 */
function facebook_show_feed_checkbox() {
  FB.ensureInit(function() {
      FB.Connect.get_status().waitUntilReady(function(status) {
          if (status != FB.ConnectState.userNotLoggedIn) {
            // If the user is currently logged into Facebook, but has not
            // authorized the app, then go ahead and show them the feed dialog + upsell
            checkbox = $('publish_fb_checkbox');
            if (checkbox) {
              checkbox.style.visibility = "visible";
            }
          }
        });
    });
}