function zf_iframe_generator_v1(options) {
    var jQuery;

    if (window.jQuery === undefined || window.jQuery.fn.jquery !== '3.3.1') {
        var script_tag = document.createElement('script');
        script_tag.setAttribute("type","text/javascript");
        script_tag.setAttribute("src",
            "https://code.jquery.com/jquery-3.3.1.min.js");
        if (script_tag.readyState) {
            script_tag.onreadystatechange = function () { // For old versions of IE
                if (this.readyState == 'complete' || this.readyState == 'loaded') {
                    scriptLoadHandler();
                }
            };
        } else { // Other browsers
            script_tag.onload = scriptLoadHandler;
        }
        (document.getElementsByTagName("head")[0] || document.documentElement).appendChild(script_tag);
    } else {
        jQuery = window.jQuery;

        main(options);
    }

    function scriptLoadHandler() {
        jQuery = window.jQuery.noConflict(true);
        main(options);
    }              

    function main(options) {
        jQuery(document).ready(function($){
            var settings3 = $.extend({
                selector: '#zf_iframe_generator_v1'
            }, options);           

            var homeURL = '\/\/www.zeugnisfairness.de\/widget\/generator\/v1\/w_e9015d1caed2a1271e4a78f35ce3281fa8db99edf322a41924b4a401ace7a1e3'+'?import_id='+options.import_id;
                       
            
            var originalWidth=1100;
            var originalHeight=1000;

            var iframe = $('<iframe>', {
                id:"zf_generator_iframe_v1",
                src: homeURL,
                frameborder: 0,
                scrolling: 'yes', 
                height: "100%",
                width: "100%",             
            });

            var $container = $(settings3.selector);
            // $container.append('<span style="font-size:11px;position:absolute;top:0;left:0">In Kooperation mit <a target="_blank" style="color:blue; text-decoration:underline" href="https://www.zeugnisfairness.de/">www.zeugnisfairness.de</a></span>');
            $container.before('<div style="font-size:11px;margin-top:50px;margin-bottom:15px">In Kooperation mit <a target="_blank" style="color:blue; text-decoration:underline" href="https://www.zeugnisfairness.de/">www.zeugnisfairness.de</a></div>');
            
            iframe.appendTo(settings3.selector);
            //making the iframe responsive
            $(`iframe[src*='${homeURL}']`).css("position", "absolute");
            $(`iframe[src*='${homeURL}']`).css("top", "0");
            $(`iframe[src*='${homeURL}']`).css("left", "0");
            $(`iframe[src*='${homeURL}']`).css("display", "block");
            $('<div id="zf-dec-widget-overlay1"></div>').appendTo(settings3.selector);


            window.addEventListener('message', function(e) {
                let iframe = document.getElementsByClassName('resize-iframe')[0];
                let eventName = e.data[0];
                let data = e.data[1];
                switch(eventName) {
                    case 'setHeight':
                        iframe.style.height = (data) + 'px';
                        //console.log('parent', data);
                        break;
                    case 'scrollTo':
                        console.log('Iframe offset top', $('#zf_iframe_generator_v1').offset().top);
                        console.log('position inside Iframe',data)
                        console.log('scroll to',$('#zf_iframe_generator_v1').offset().top + data)
                        window.scrollTo(0,$('#zf_iframe_generator_v1').offset().top + data);
                        //console.log('scrollTo', $('#zf_iframe_generator_v1').offset().top, data);
                        break;
                }
            }, false);
        });
    }
}