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document.addEventListener("DOMContentLoaded", function() { // URL-Parameter auslesen function getUrlParameter(name) { const urlParams = new URLSearchParams(window.location.search); return urlParams.get(name); } // UTM Source erfassen var utmSourceField = document.querySelector('input[name="utm_source"]'); if (utmSourceField) { var utmSource = getUrlParameter('utm_source'); if (utmSource) { utmSourceField.value = utmSource; } } // Komplette URL erfassen var fullUrlField = document.querySelector('input[name="form_url"]'); if (fullUrlField) { fullUrlField.value = window.location.href; } });