          + '" width="100%" height="500" frameborder="0" allowfullscreen&gt;&lt;p&gt;&lt;a href="https://gpx.studio'
                + window.location.pathname.replace('about.html','')
                + query
                + '"&gt;&lt;/a&gt;&lt;/p&gt;&lt;/iframe&gt;';
        }

        var toggledElement = null;
        function toggle(id) {
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            if (toggledElement) toggledElement.hidden = 'until-found';
            if (element == toggledEle