window.onload = function() {
        var wu = encodeURIComponent(window.location.href);
        var el = document.createElement('div');
        el.setAttribute('id','motjuice-booking-widget');
        el.setAttribute('style','width:100%;');
        var sc = document.getElementById('motjbwidget');
        sc.parentNode.insertBefore(el, sc);
        var trans = window.getComputedStyle(el,null).getPropertyValue("background-color");
        var elem = el.parentElement;
        var bg = window.getComputedStyle(elem,null).getPropertyValue("background-color");
        while (elem && bg === trans) {
            elem = elem.parentElement;
            if (elem) {
                bg = window.getComputedStyle(elem,null).getPropertyValue("background-color");
            }
        }
        var fr = document.createElement('iframe');
        fr.setAttribute('src','https://admin.motjuice.co.uk/mot-booking-widget.php?garage_id=13769&widget_url=' + wu + '&bg=' + bg);
        fr.setAttribute('style','width:100%;border:none;');
        fr.setAttribute('scrolling','no');
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                case 'setHeight':
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