add banner-counter.php

partials/banner-counter.php

@@ -0,0 +1,26 @@
+<a href="https://forum.rusgrain.org?erid=2VSb5zKAzHv" target="_blank" style="display: block; width: 240px; height: 400px; text-decoration: none; margin: 0 auto;">
+        <div id="banner" class="banner-left" style="position: relative; width: 100%; height: 100%; background: url('https://agroexpert.press/wp-content/uploads/2025/02/agroekspert-480h800-.jpg') no-repeat center/cover;">
+            <div id="countdown" style="position: absolute; bottom: 24px; right: 0px; font-family: Impact, Charcoal, sans-serif; font-size: 15px; text-transform: uppercase; background-color: green; color: white; padding: 6px 15px 6px 19px; border-bottom: 2px solid white;">
+                Осталось 00 дней
+            </div>
+        </div>
+    </a>
+
+<script>
+    function getDayText(num) {
+        if (num % 10 === 1 && num % 100 !== 11) return "день";
+        if ([2, 3, 4].includes(num % 10) && ![12, 13, 14].includes(num % 100)) return "дня";
+        return "дней";
+    }
+
+    function updateCountdown() {
+        const eventDate = new Date('2025-05-28'); // Дата события
+        const now = new Date();
+        const diff = Math.max(0, Math.ceil((eventDate - now) / (1000 * 60 * 60 * 24))); // Разница в днях
+
+        document.getElementById('countdown').innerText = `Осталось ${diff} ${getDayText(diff)}`;
+    }
+
+    updateCountdown();
+    setInterval(updateCountdown, 86400000); // Обновление раз в день
+</script>