(function () { // Initialize GTM with default consent settings // Define dataLayer and the gtag function. window.dataLayer = window.dataLayer || []; function gtag() { window.dataLayer.push(arguments); } if (typeof gtag !== "undefined") { gtag("consent", "default", { analytics_storage: "denied", ad_storage: "denied", ad_user_data: "denied", ad_personalization: "denied", wait_for_update: 500, }); } // Check existing consent const consent = localStorage.getItem("cookieConsent"); // Show banner if no consent given if (!consent) { showConsentBanner(); } else { handleConsentLevel(consent); } function showConsentBanner() { const banner = document.createElement("div"); banner.id = "gtm-consent-banner"; banner.innerHTML = ` `; document.body.appendChild(banner); // Event listeners document.getElementById("accept-all-cookies").onclick = () => handleConsentLevel("all"); document.getElementById("accept-selected-cookies").onclick = () => acceptSelected(); document.getElementById("reject-all-cookies").onclick = () => handleConsentLevel("reject"); } function handleConsentLevel(level) { localStorage.setItem("cookieConsent", level); if (level === "all") { gtag("consent", "update", { analytics_storage: "granted", ad_storage: "granted", ad_user_data: "granted", ad_personalization: "granted", }); } else if (level === "necessary") { gtag("consent", "update", { analytics_storage: "denied", ad_storage: "denied", ad_user_data: "denied", ad_personalization: "denied", }); } else if (level === "analytics") { gtag("consent", "update", { analytics_storage: "granted", ad_storage: "denied", ad_user_data: "denied", ad_personalization: "denied", }); } else if (level === "reject") { // Reject all cookies gtag("consent", "update", { analytics_storage: "denied", ad_storage: "denied", ad_user_data: "denied", ad_personalization: "denied", }); } if (!consent) { document.getElementById("gtm-consent-banner").remove(); } return; } function acceptSelected() { const analyticsAccepted = document.getElementById("analytics-cookies").checked; if (analyticsAccepted) { handleConsentLevel("analytics"); return; } handleConsentLevel("necessary"); return; } })();

Getting Started

Library

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