var NTR = {
    uid: '67a36db2d59022.90234066',
    utms: { 
        }
}

window.onload = function() {
    // Visitor ID
    var inputUid = document.getElementById('ntr_uid');

    if (inputUid != null) {
        inputUid.value =  NTR.uid;
    }

    var allowedUtms = [
        'utm_source',
        'utm_medium',
        'utm_campaign',
        'utm_content',
        'utm_term',
        'gclid',
        'fbclid'
    ];

    var extraUtms = {};
    
    // UTMs
    for (const [key, value] of Object.entries(NTR.utms)) {

        if (allowedUtms.includes(key)) {
            var inputUtm = document.getElementById('ntr_' + key);

            if (inputUtm != null) {
                inputUtm.value =  value;
            }

        } else {
            extraUtms[key] = value;
        }
    }

    // Extra UTMs
    if(Object.keys(extraUtms).length > 0) {
        var inputExtraUtm = document.getElementById('ntr_extra');

        if (inputExtraUtm != null) {
            inputExtraUtm.value =  JSON.stringify(extraUtms);
        }
    }
};