Hubspot Form Validation

gistfile1.txt

http://dev.jackcoldrick.com/custom-form-validation/

gistfile2.txt

                <!--[if lte IE 8]> 
  <script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2-legacy.js"></script>
  <![endif]-->
                <script charset="utf-8" type="text/javascript" src="//js.hsforms.net/forms/v2.js"></script>
                <script>
                    hbspt.forms.create({ 
                        portalId: "2990812",
                        formId: "c7782001-207b-408b-b009-4a57afed6056",
                        onFormReady: function($form, e) {
                            document.querySelector("[type='submit']").addEventListener("click", function(event) {
                                //if competition code doesn't contain 2 letters and 4 numbers then stop the form from submitting...
                                var code = $('input[name="competition_code"]').val();
                                var pattern = new RegExp('^MWL[0-9]{6}$', 'i');
								
                                if (pattern.test(code)) {
                                    console.log(code + " is valid");
                                } else {
                                    event.preventDefault();
                                    console.log(code + " is not valid");
                                    $('.alert').show();
                                    $('.userinput').html(code); 
                                }
                            }, false);
                        }
                    });
                </script>