if (eaeroApi == undefined) {
    var eaeroApi = {};

    eaeroApi.updateMultipleHours = function (idArr, template, date, clear, withDayAfterTomorrow, withFootnotes, withLegend) {

        // todo: prüfen, ob dies ev. auch im head-Element funktioniert
        var bodyElement = document.getElementsByTagName('body')[0];

        if(!bodyElement && bodyElement == undefined) {
            console.log('Fehler in der Implementierung der eaero-API. Kein Body-Element gefunden. Script wird eventuell zu früh geladen.');
            return
        }

        if (!withDayAfterTomorrow || withDayAfterTomorrow == undefined) {
            withDayAfterTomorrow = 0;
        }

        if (!withFootnotes || withFootnotes == undefined) {
            withFootnotes = 0;
        }

        if (!withLegend || withLegend == undefined) {
            withLegend = 0;
        }

        var src = '//app.eaero.de/app.php/api/multiHours/' + template + '/' + idArr + '/' + date + '/ae01e024448df7bf732d33a11b614b21';

        var params = '';

        if(withDayAfterTomorrow != 0) {
            if(params == '') params += '?'; else params += '&';
            params += 'withDayAfterTomorrow=1';
        }

        if(withFootnotes != 0) {
            if(params == '') params += '?'; else params += '&';
            params += 'withFootnotes=1';
        }

        if(withLegend != 0) {
            if(params == '') params += '?'; else params += '&';
            params += 'withLegend=1';
        }

        src += params;

        var s = document.createElement("script");
        s.type = "text/javascript";
        s.src = src;

        if (clear) {
            for (var i = 0; i < idArr.length; i++) {
                var divId = 'div_hours' + idArr[i];
                var div = document.getElementById(divId);

                if (div && div != undefined) {
                    div.innerHTML = '';
                }
            }
        }

        bodyElement.appendChild(s);
    };

    eaeroApi.updateHours = function (scriptId, id, template, date, clear, withDayAfterTomorrow, withFootnotes, withLegend) {

        var divElement = document.getElementById('div_' + scriptId);

        if (!divElement || divElement == undefined) {
            return;
        }

        if (!withDayAfterTomorrow || withDayAfterTomorrow == undefined) {
            withDayAfterTomorrow = 0;
        }

        if (!withFootnotes || withFootnotes == undefined) {
            withFootnotes = 0;
        }

        if (!withLegend || withLegend == undefined) {
            withLegend = 0;
        }

        var scriptSrc = '';

        if (divElement.scriptSrc != undefined) {
            scriptSrc = divElement.scriptSrc;
        }
        else {
            scriptSrc = '//app.eaero.de/app.php/api/hours/' + template + '/' + id + '/ae01e024448df7bf732d33a11b614b21';
        }

        var scriptSrcArr = scriptSrc.split('/');

        for (i = 0; i < scriptSrcArr.length; i++) {
            if (scriptSrcArr[i] == 'hours') {
                scriptSrcArr[i + 3] = date;
            }
        }

        src = scriptSrcArr.join('/');

        var params = '';

        if(withDayAfterTomorrow != 0) {
            if(params != '') params += '?'; else params += '&';
            params += 'withDayAfterTomorrow=1';
        }

        if(withFootnotes != 0) {
            if(params != '') params += '?'; else params += '&';
            params += 'withFootnotes=1';
        }

        if(withLegend != 0) {
            if(params != '') params += '?'; else params += '&';
            params += 'withLegend=1';
        }

        src += params;

        var s = document.createElement("script");
        s.type = "text/javascript";
        s.src = src;
        s.id = 'div_' + scriptId;

        if (clear) {
            divElement.innerHTML = '';
        }

        divElement.appendChild(s);

    };

    eaeroApi.updateTableOfHours = function(scriptId, date, clear) {

        var divElement = document.getElementById('div_' + scriptId);

        var prevButton = document.getElementById('toh_prev_button_' + scriptId);
        var nextButton = document.getElementById('toh_next_button_' + scriptId);
        var loadIndicator = document.getElementById('toh_load_indicator_' + scriptId);

        if (!divElement || divElement == undefined) {
            return;
        }

        if(prevButton) {
            prevButton.setAttribute('disabled', 'disabled');
        }

        if(nextButton) {
            nextButton.setAttribute('disabled', 'disabled');
        }

        if(loadIndicator) {
            loadIndicator.setAttribute('style', '');
        }

        var scriptSrc = '';

        if (divElement.scriptSrc != undefined) {
            scriptSrc = divElement.scriptSrc;
        }
        else if(divElement.getAttribute('scriptSrc') != undefined) {
            scriptSrc = divElement.getAttribute('scriptSrc');
        }
        else {
            scriptSrc = '//app.eaero.de/app.php/api/tableOfHours/' + scriptId + '/1,2,3,4,5,6,7//ae01e024448df7bf732d33a11b614b21';
        }

        var scriptSrcArr = scriptSrc.split('/');

        for (i = 0; i < scriptSrcArr.length; i++) {
            if (scriptSrcArr[i] == 'tableOfHours') {
                scriptSrcArr[i + 3] = date;
            }
        }

        src = scriptSrcArr.join('/');

        var s = document.createElement("script");
        s.type = "text/javascript";
        s.src = src;
        s.id = 'div_' + scriptId;

        if (clear) {
            divElement.innerHTML = '';
        }

        divElement.appendChild(s);
    };

    if (typeof eAeroApiLoaded == 'function') {
        eAeroApiLoaded();
    }
}