UTM to button link

utm-to-button.js

document.addEventListener('DOMContentLoaded', function () {
  const params = new URLSearchParams(window.location.search);
  const utmParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content'];
  let utmString = '';

  utmParams.forEach(param => {
    if (params.has(param)) {
      utmString += `${utmString ? '&' : '?'}${param}=${encodeURIComponent(params.get(param))}`;
    }
  });

  if (utmString) {
    document.querySelectorAll('.ctabutton').forEach(button => {
      const href = button.getAttribute('href').split('?')[0]; // Remove existing query
      button.setAttribute('href', href + utmString);
    });
  }
});