/**
   * Global variables
   */

  var $document = $(document),
    plugins = {
      campaignMonitor: $('.campaign-mailform'),
      regula: $("[data-constraints]"),  
      rdInputLabel: $(".form-label"),
    };

  /**
   * Initialize All Scripts
   */
  $document.ready(function () {
    var isNoviBuilder = window.xMode;


    /**
     * attachFormValidator
     * @description  attach form validation to elements
     */
    function attachFormValidator(elements) {
      for (var i = 0; i < elements.length; i++) {
        var o = $(elements[i]), v;
        o.addClass("form-control-has-validation").after("<span class='form-validation'></span>");
        v = o.parent().find(".form-validation");
        if (v.is(":last-child")) {
          o.addClass("form-control-last-child");
        }
      }

      elements
        .on('input change propertychange blur', function (e) {
          var $this = $(this), results;

          if (e.type !== "blur") {
            if (!$this.parent().hasClass("has-error")) {
              return;
            }
          }

          if ($this.parents('.rd-mailform').hasClass('success')) {
            return;
          }

          if ((results = $this.regula('validate')).length) {
            for (i = 0; i < results.length; i++) {
              $this.siblings(".form-validation").text(results[i].message).parent().addClass("has-error")
            }
          } else {
            $this.siblings(".form-validation").text("").parent().removeClass("has-error")
          }
        })
        .regula('bind');

      var regularConstraintsMessages = [
        {
          type: regula.Constraint.Required,
          newMessage: "The text field is required."
        },
        {
          type: regula.Constraint.Email,
          newMessage: "The email is not a valid email."
        },
        {
          type: regula.Constraint.Numeric,
          newMessage: "Only numbers are required"
        },
        {
          type: regula.Constraint.Selected,
          newMessage: "Please choose an option."
        }
      ];


      for (var i = 0; i < regularConstraintsMessages.length; i++) {
        var regularConstraint = regularConstraintsMessages[i];

        regula.override({
          constraintType: regularConstraint.type,
          defaultMessage: regularConstraint.newMessage
        });
      }
    }


    /**
     * isValidated
     * @description  check if all elements pass validation
     */
    function isValidated(elements, captcha) {
      var results, errors = 0;

      if (elements.length) {
        for (j = 0; j < elements.length; j++) {

          var $input = $(elements[j]);
          if ((results = $input.regula('validate')).length) {
            for (k = 0; k < results.length; k++) {
              errors++;
              $input.siblings(".form-validation").text(results[k].message).parent().addClass("has-error");
            }
          } else {
            $input.siblings(".form-validation").text("").parent().removeClass("has-error")
          }
        }

        if (captcha) {
          if (captcha.length) {
            return validateReCaptcha(captcha) && errors === 0
          }
        }

        return errors === 0;
      }
      return true;
    }


    /**
     * RD Input Label
     * @description Enables RD Input Label Plugin
     */

    if (plugins.rdInputLabel.length) {
      plugins.rdInputLabel.RDInputLabel();
    }


    /**
     * Regula
     * @description Enables Regula plugin
     */

    if (plugins.regula.length) {
      attachFormValidator(plugins.regula);
    }


    /**
     * Campaign Monitor ajax subscription
     */
    if (plugins.campaignMonitor.length) {
      for (var i = 0; i < plugins.campaignMonitor.length; i++) {
        var $campaignItem = $(plugins.campaignMonitor[i]);

        $campaignItem.on('submit', $.proxy(function (e){
          var data = {},
            url = this.attr('action'),
            dataArray = this.serializeArray(),
            $output = $("#" + plugins.campaignMonitor.attr("data-form-output")),
            $this = $(this);

          for (i = 0; i < dataArray.length; i++) {
            data[dataArray[i].name] = dataArray[i].value;
          }

          $.ajax({
            data: data,
            url: url,
            dataType: 'jsonp',
            error: function (resp, text) {
              $output.html('Server error: ' + text);

              setTimeout(function () {
                $output.removeClass("active");
              }, 4000);
            },
            success: function (resp) {
              $output.html(resp.Message).addClass('active');

              setTimeout(function () {
                $output.removeClass("active");
              }, 6000);
            },
            beforeSend: function(data){
              // Stop request if builder or inputs are invalide
              if (isNoviBuilder || !isValidated($this.find('[data-constraints]')))
                return false;

              $output.html('Submitting...').addClass('active');
            }
          });

          return false;
        }, $campaignItem));
      }
    }
  });

<!-- Campaign Monitor-->
<form class="campaign-mailform form-inline" data-form-output="form-output-global" action="https://templatermonster.createsend.com/t/j/s/zjjikd/" method="post">
  <div class="form-wrap">
    <label class="form-label" for="campaign-email">Enter your e-mail</label>
    <input class="form-input" id="campaign-email" type="email" name="cm-zjjikd-zjjikd" data-constraints="@Email @Required">
  </div>
  <div class="form-button">
    <button class="button button-primary" type="submit">Subscribe</button>
  </div>
</form>

<!-- Element for for resault -->
<div class="form-output-global"></div>