sshadmand

var ABSOLUTE_URI = "http://yourpage.com/openerhandler.html";
var FB_ID = "123456778";
function openFBLoginDialogManually(){
  // Open your auth window containing FB auth page 
  // with forward URL to your Opened Window handler page (below)
  
  var redirect_uri = "&redirect_uri=" + ABSOLUTE_URI + "fbjscomplete";
  var scope = "&scope=public_profile,email,user_friends";
  var url = "https://www.facebook.com/dialog/oauth?client_id=" + FB_ID + redirect_uri + scope;