var submitted = false;

        var last_service = null;

        if (typeof jQuery === 'undefined') {
            var n=document.createElement("script");
            n.src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js";
            document.getElementsByTagName("script")[0].append(n);
            console.log(document.getElementsByTagName("script")[0]);
            setTimeout(function () {
                jQuery(document).ready(function () {
                    jQuery.ajax({
                        url: "https://dev.my.checknatura.de/samples/form_create/13",
                        type: "get",
                        success: function (msg) {
                            jQuery('#cn-form-wrapper').html(msg);
                        }
                    });
                });

            }, 700);
        } else {
            jQuery(document).ready(function () {
                jQuery.ajax({
                    url: "https://dev.my.checknatura.de/samples/form_create/13",
                    type: "get",
                    success: function (msg) {
                        jQuery('#cn-form-wrapper').html(msg);
                    }
                });
            });
        }

        function cn_form_save() {

            var data1 = jQuery('#cn-form-1').serializeArray();
            var data2 = jQuery('#cn-form-2').serializeArray();
            var data3 = jQuery('#cn-form-3').serializeArray();
            var data = data1.concat(data2, data3);

            var loader_box = jQuery('.loading-state');
            loader_box.show();

            if (!submitted) {

                //submitted = true;
                jQuery.ajax({
                    url: "https://dev.my.checknatura.de/samples/form_save",
                    type: "get",
                    data: {
                        values: data
                    },
                    success: function (msg) {
                        loader_box.hide();
                        jQuery('#cn-form-site-4').html('<h3>' + msg + '</h3>');
                        console.log(msg);
                        cn_change_site(null, 4);
                        jQuery('#site-flow-display').hide()
                    }
                });
            } else {
                loader_box.hide();
            }

            return false;
        }

        function toggleCompany(thisElement) {
            var val = jQuery(thisElement).val();
            if (val === 'company') {
                jQuery('#tr-company').show();
                jQuery('#cn-inp-company').attr('required', true);
            } else {
                jQuery('#tr-company').hide();
                jQuery('#cn-inp-company').attr('required', false);
            }
        }

        function cn_trigger_prev_click(thisElement) {
            var prev = jQuery(thisElement).parents('tr').find('input[type=radio]');
            prev.trigger('click');
        }

        function toggle_property_type(thisElement) {
            var val = jQuery(thisElement).val();
            if (val === 'other') {
                jQuery('#property-type-other').attr('required', true);
            } else {
                jQuery('#property-type-other').attr('required', false);
            }
        }

        function selectSubcat(thisElement) {
            uncheckSubcats();
            jQuery(thisElement).prop('checked', true);
            var service_id = jQuery(thisElement).data('id');
            var $radios = jQuery('input:radio[name=service]');
            var parent_service = $radios.filter('[value=' + service_id + ']')
            parent_service.prop('checked', true);
            loadQuestions(parent_service);
        }

        function clickSite(thisElement, site) {
            var aktSite = parseInt(jQuery('#site-flow-display').data('site'));
            if(aktSite == 1 && site == 2) {
                jQuery("#cn-form-1").find('input[type=submit]').trigger('click');
            } else if(aktSite === 1 && site === 3) {
                var form1 = document.querySelector("#cn-form-1");
                var form2 = document.querySelector("#cn-form-2");
                if (form2.checkValidity()) {
                    cn_change_site(aktSite, site);
                } else if (form1.checkValidity()) {
                    cn_change_site(aktSite, 2);
                    jQuery("#cn-form-2").find('input[type=submit]').trigger('click');
                } else {
                    jQuery("#cn-form-1").find('input[type=submit]').trigger('click');
                }
            } else if(aktSite === 2 && site === 3) {
                jQuery("#cn-form-2").find('input[type=submit]').trigger('click');
            } else {
                cn_change_site(aktSite, site);
            }
        }

        function checkSevice(thisElement) {
            var val = jQuery(thisElement).val();
            uncheckSubcats();
            loadQuestions(thisElement);
            var $radios = jQuery('.subcats-' + val);
            $radios.prop('required', true);
        }

        function loadQuestions(thisElement) {
            let service_id = $(thisElement).data('id');
            if (last_service === service_id) {
                return;
            }
            $.ajax({
                url: "https://dev.my.checknatura.de/samples/request_questions/" + service_id,
                data: {},
                async: false,
                success: function (data) {
                    let response = data;
                    console.log(response);
                    last_service = service_id;
                    $('#cn-form-questions').html(response.questions);
                    $('#cn-counter-property').html(response.number + 1);
                    $('#cn-counter-notice').html(response.number + 2);
                    $('[data-toggle="tooltip"]').tooltip();
                }
            });
        }

        function uncheckSubcats() {
            var $radios = jQuery('.service-subcats');
            $radios.prop('checked', false);
            $radios.prop('required', false);
        }

        function cn_form_site_down(site) {
            var nextsite = site - 1;
            cn_change_site(site, nextsite);
        }

        function cn_change_site(aktSite, newSite) {

            if (aktSite === null) {
                jQuery('.cn-form-site').hide();
                jQuery('#cn-form-site-' + newSite).show();
            } else {
                jQuery('#site-flow-display').data('site', newSite);
                jQuery('#cn-form-site-' + aktSite).hide();
                jQuery('#cn-form-site-' + newSite).show();
                jQuery('.site-flow-item').removeClass('selected');
                jQuery('#site-flow-item-' + newSite).addClass('selected');
            }
        }

        function cn_form_site_up(site) {
            var myform = document.querySelector("#cn-form-" + site);
            var nextsite = site + 1;
            if (myform.checkValidity() ) {
                cn_change_site(site, nextsite);
                return false;
            }
            return true;
        }

        function cn_show_footer(site) {
            jQuery('#cn-form-footer').data('site', site);
            jQuery('#cn-form-footer-site').html(site);
            jQuery('.cn-form-site').hide();
            jQuery('#cn-form-site-' + site).show();
            jQuery('.cn-form-footer-site-changer').hide();
            if (site > 1) {
                jQuery('#cn-form-footer-site-down').show();
            }
            if (site < 3) {
                jQuery('#cn-form-footer-site-up').show();
            }
        }