function isValidEmailAddress(emailAddress) {
    var pattern = new RegExp(/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i);
    return pattern.test(emailAddress);
  };



  // Render submission container if we're returning from a successful user login.
  // This will invoke doShowSubmission
  $(document).ready(function () {
    if(window.location.href.indexOf("bvauthenticateuser=false") > -1) {
       $BV.configure("global", {userToken: ''});
       $BV.ui("submission_container", {});
    }
  });

  $BV.configure("global", {
    allowSamePageSubmission: true,
    userToken: "",
    doLogin: function(successCallback, successUrl) {
      // Note: doLogin only executes when anonymous submission is disabled in BV config.
      // When enabled, this is skipped and doShowSubmission is invoked directly.

      if (successUrl.indexOf('?destinationurl=') > -1) {
        // Bypass domain check and go directly to destinationurl. This is a workaround
        // due to server-side issue.
        returnUrl = decodeURIComponent(successUrl).split('?destinationurl=')[1];
      }
      else {
        returnUrl = successUrl.split('#')[0];
      }

      // hide regular content and show bv login flow
      $('.bvflow_hide').addClass('bv_hide');
      $('.bvflow_show').removeClass('hidden');
      // set form action
      $('.bvflow_show form').attr('action', $('#login-form').attr('action'));

      // set return url
      $('.bvflow_show input[name="RETURN_URL"]').val(returnUrl);

      // set forgot pwd link
      $('.bvflow_show .forgot-pw a').attr('href', $('#login-form .forgot-pw a').attr('href'));

      $('.email_check .btn-bv').click(function(evt){
        evt.preventDefault();
        var email = $('.bv_email').val();
        if(isValidEmailAddress(email)) {
          generic.jsonrpc.fetch({
            method: 'user.registered',
            params: [{'email_address': email}],
            onSuccess: function(r) {
              var val = r.getValue();
              var isUser = (val !== null) && (val === 1);
              if(isUser) { // show full login
                $('.bvflow_show .email_check').addClass('hidden');
                $('.bvflow_show .full_sign_in').removeClass('hidden');
                $('.full_sign_in input[name="EMAIL_ADDRESS"]').val(email);
              } else { // anonymous write-a-review
                $('.bvflow_show').addClass('hidden');
                $('.bvflow_hide').removeClass('bv_hide');
                $('html,body').animate({scrollTop: $("div[id='BVSubmissionContainer']").offset().top-75},'slow');
              }
            },
            onFailure: function (r) {}
          });
        } else { // show "please enter valid email address" msg
          $('span[for="EMAIL_ADDRESS"]').css('display', 'block');
        }
      });
    },
    doShowSubmission: function() {
      // Note: When anonymous submission is disabled and doLogin is invoked, we don't
      // need to do anything more in the doShowSubmission callback.

      // Manually construct successUrl (workaround for anonymous login since doLogin won't fire)      
      var bvreturn = document.URL.split('#')[0];
      var bvdisplaycode = '3813';
      var bvappcode = 'rr';
      var bvcontenttype = 'REVIEW_SUBMISSION';
      var bvproductid = '6608';
      var bvhost = (typeof(bv_host) !== 'undefined') ? bv_host : 'clinique.ugc.bazaarvoice.com' ;
      var bvpage = '//' + bvhost + '/' + bvdisplaycode + '/' + bvproductid + '/submitreview.htm?format=embedded&campaignid=BV_RATING_SUMMARY&sessionparams=__BVSESSIONPARAMS__&return=' + encodeURIComponent(bvreturn) + '&innerreturn=%2F%2Fclinique.ugc.bazaarvoice.com%2F' + bvdisplaycode + '%2F' + bvproductid + '%2Freviews.djs%3Fformat%3Dembeddedhtml&user=__USERID__&authsourcetype=__AUTHTYPE__';

      var returnUrl = bvreturn + '?bvdisplaycode=' + bvdisplaycode + '&bvappcode=' + bvappcode + '&bvproductid=' + bvproductid + '&bvpage=' + encodeURIComponent(bvpage) + '&bvcontenttype=' + bvcontenttype + '&bvauthenticateuser=false';

      // Hide content and show BV login flow unless we're returning from login page.
      //if(window.location.href.indexOf("bvauthenticateuser") == -1) {
      if (!false) {
        // hide regular content and show bv login flow
        $('.bvflow_hide').addClass('bv_hide');
        $('.bvflow_show').removeClass('hidden');
      }

      // set form action
      $('.bvflow_show form').attr('action', $('#login-form').attr('action'));

      $('.bvflow_show input[name="RETURN_URL"]').val(returnUrl);
    
      // set forgot pwd link
      $('.bvflow_show .forgot-pw a').attr('href', $('#login-form .forgot-pw a').attr('href'));
      
      $('.email_check .btn-bv').click(function(evt){
        evt.preventDefault();
        var email = $('.bv_email').val();
        if(isValidEmailAddress(email)) {
          generic.jsonrpc.fetch({
            method: 'user.registered',
            params: [{'email_address': email}],
            onSuccess: function(r) {
              var val = r.getValue();
              var isUser = (val !== null) && (val === 1);
              if(isUser) { // show full login
                $('.bvflow_show .email_check').addClass('hidden');
                $('.bvflow_show .full_sign_in').removeClass('hidden');
                $('.full_sign_in input[name="EMAIL_ADDRESS"]').val(email);
              } else { // anonymous write-a-review
                $('.bvflow_show').addClass('hidden');
                $('.bvflow_hide').removeClass('bv_hide');
                $('html,body').animate({scrollTop: $("div[id='BVSubmissionContainer']").offset().top-75},'slow');
              }
            },
            onFailure: function (r) {}
          });
        } else { // show "please enter valid email address" msg
          $('span[for="EMAIL_ADDRESS"]').css('display', 'block');
        }
      });
    },
    onSubmissionReturn: function() {
    },
    doScrollSubmission: function() {
      $('html,body').animate({scrollTop: $("div[id='BVSubmissionContainer']").offset().top-75},'slow');
    }
  });

  // BV UI
  // NOTE: remove 'submissionContainerDiv' option if using separate review submission page
  $BV.ui(
    "rr",
    "show_reviews",
    {
      productId: "6608",
      submissionContainerDiv: "BVSubmissionContainer"
    }
  );