Implemented AJAX skeleton with configurable poll interval

scripts/wp-liveticker2.js

@@ -0,0 +1,29 @@
+jQuery(document).ready(function ($) {
+	// Trigger periodic update of livetickers.
+	setTimeout(wplt2_update_ticker, ajax_object.poll_interval);
+});
+
+function wplt2_update_ticker() {
+	// Get ticker to update.
+	const ticker = jQuery("ul.wplt2-ticker-ajax");
+	if (ticker.length > 0) {
+		setTimeout(wplt2_update_ticker, ajax_object.poll_interval);
+		// Extract ticker-slug, limit and timestamp of last poll.
+		const updateReq = jQuery.map(ticker, function (e, i) {
+			return {s: jQuery(e).data('wplt2Ticker'), l: jQuery(e).data('wplt2Limit'), t: jQuery(e).data('wplt2Last')};
+		});
+
+		// Issue AJAX request.
+		jQuery.post(
+			ajax_object.ajax_url,
+			{
+				'action': 'wplt2_update-ticks',
+				'update': updateReq
+			},
+			function (res) {
+				// TODO: Update markup.
+				setTimeout(wplt2_update_ticker, ajax_object.poll_interval);
+			}
+		);
+	}
+}