diff --git a/scripts/liveticker.js b/scripts/liveticker.js
index c86c735..031c3cc 100644
--- a/scripts/liveticker.js
+++ b/scripts/liveticker.js
@@ -3,180 +3,185 @@
  *
  * @class
  */
-function scLiveticker() {
-}
+( function() {
+	var ajaxURL = sclivetickerAjax.ajax_url;
+	var nonce = sclivetickerAjax.nonce;
+	var pollInterval = sclivetickerAjax.poll_interval;
+	var ticker;
+	var widgets;
 
-/**
- * Initialize iveticker JS component.
- *
- * @return {void}
- */
-scLiveticker.init = function() {
-	var updateNow = false;
+	/**
+	 * Initialize iveticker JS component.
+	 *
+	 * @return {void}
+	 */
+	var init = function() {
+		var updateNow = false;
 
-	// Opt out if AJAX pobject not present.
-	if ( 'undefined' === typeof sclivetickerAjax ) {
-		return;
-	}
-
-	// Extract AJAX settings.
-	scLiveticker.ajaxURL = sclivetickerAjax.ajax_url;
-	scLiveticker.nonce = sclivetickerAjax.nonce;
-	scLiveticker.pollInterval = sclivetickerAjax.poll_interval;
-
-	// Get ticker elements.
-	scLiveticker.ticker = [].map.call(
-		document.querySelectorAll( 'div.wp-block-scliveticker-ticker.sclt-ajax' ),
-		function( elem ) {
-			var list = elem.querySelector( 'ul' );
-			var last = Number( elem.getAttribute( 'data-sclt-last' ) );
-
-			if ( ! list ) {
-				list = document.createElement( 'ul' );
-				elem.appendChild( list );
-			}
-
-			if ( 0 === last ) {
-				updateNow = true;
-			}
-
-			return {
-				s: elem.getAttribute( 'data-sclt-ticker' ),
-				l: elem.getAttribute( 'data-sclt-limit' ),
-				t: last,
-				e: list,
-			};
+		// Opt out if AJAX pobject not present.
+		if ( 'undefined' === typeof sclivetickerAjax ) {
+			return;
 		}
-	);
 
-	// Get widget elements.
-	scLiveticker.widgets = [].map.call(
-		document.querySelectorAll( 'div.wp-widget-scliveticker-ticker.sclt-ajax' ),
-		function( elem ) {
-			var list = elem.querySelector( 'ul' );
-			var last = Number( elem.getAttribute( 'data-sclt-last' ) );
+		// Extract AJAX settings.
+		ajaxURL = sclivetickerAjax.ajax_url;
+		nonce = sclivetickerAjax.nonce;
+		pollInterval = sclivetickerAjax.poll_interval;
 
-			if ( ! list ) {
-				list = document.createElement( 'ul' );
-				elem.appendChild( list );
-			}
+		// Get ticker elements.
+		ticker = [].map.call(
+			document.querySelectorAll( 'div.wp-block-scliveticker-ticker.sclt-ajax' ),
+			function( elem ) {
+				var list = elem.querySelector( 'ul' );
+				var last = Number( elem.getAttribute( 'data-sclt-last' ) );
 
-			if ( 0 === last ) {
-				updateNow = true;
-			}
-
-			return {
-				w: elem.getAttribute( 'data-sclt-ticker' ),
-				l: elem.getAttribute( 'data-sclt-limit' ),
-				t: last,
-				e: list,
-			};
-		}
-	);
-
-	// Trigger update, if necessary.
-	if ( ( 0 < scLiveticker.ticker.length || scLiveticker.widgets.length ) && 0 < scLiveticker.pollInterval ) {
-		if ( updateNow ) {
-			scLiveticker.update();
-		} else {
-			setTimeout( scLiveticker.update, scLiveticker.pollInterval );
-		}
-	}
-};
-
-/**
- * Update liveticker on current page via AJAX call.
- *
- * @return {void}
- */
-scLiveticker.update = function() {
-	// Extract ticker-slug, limit and timestamp of last poll.
-	var updateReq = 'action=sclt_update-ticks&_ajax_nonce=' + scLiveticker.nonce;
-	var i, j;
-	var xhr = new XMLHttpRequest();
-
-	for ( i = 0; i < scLiveticker.ticker.length; i++ ) {
-		updateReq = updateReq +
-			'&update[' + i + '][s]=' + scLiveticker.ticker[ i ].s +
-			'&update[' + i + '][l]=' + scLiveticker.ticker[ i ].l +
-			'&update[' + i + '][t]=' + scLiveticker.ticker[ i ].t;
-	}
-	for ( j = 0; j < scLiveticker.widgets.length; j++ ) {
-		updateReq = updateReq +
-			'&update[' + ( i + j ) + '][w]=' + scLiveticker.widgets[ j ].w +
-			'&update[' + ( i + j ) + '][l]=' + scLiveticker.widgets[ j ].l +
-			'&update[' + ( i + j ) + '][t]=' + scLiveticker.widgets[ j ].t;
-	}
-
-	// Issue AJAX request.
-	xhr.open( 'POST', scLiveticker.ajaxURL, true );
-	xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded;' );
-	xhr.onreadystatechange = function() {
-		var update;
-		if ( XMLHttpRequest.DONE === this.readyState && 200 === this.status ) {
-			try {
-				update = JSON.parse( this.responseText );
-				if ( update ) {
-					update.forEach(
-						function( u ) {
-							scLiveticker.ticker.forEach(
-								function( t ) {
-									if ( t.s === u.s ) {
-										t.t = u.t;					// Update last poll timestamp.
-										scLiveticker.updateHTML( t, u );	// Update HTML markup.
-									}
-								}
-							);
-							scLiveticker.widgets.forEach(
-								function( t ) {
-									if ( t.w === u.w ) {
-										t.t = u.t;
-										scLiveticker.updateHTML( t, u );
-									}
-								}
-							);
-						}
-					);
+				if ( ! list ) {
+					list = document.createElement( 'ul' );
+					elem.appendChild( list );
 				}
-				setTimeout( scLiveticker.update, scLiveticker.pollInterval );		// Re-trigger update.
-			} catch ( e ) {
-				// eslint-disable-next-line no-console
-				console.warn( 'Liveticker AJAX update failed, stopping automatic updates.' );
+
+				if ( 0 === last ) {
+					updateNow = true;
+				}
+
+				return {
+					s: elem.getAttribute( 'data-sclt-ticker' ),
+					l: elem.getAttribute( 'data-sclt-limit' ),
+					t: last,
+					e: list,
+				};
+			}
+		);
+
+		// Get widget elements.
+		widgets = [].map.call(
+			document.querySelectorAll( 'div.wp-widget-scliveticker-ticker.sclt-ajax' ),
+			function( elem ) {
+				var list = elem.querySelector( 'ul' );
+				var last = Number( elem.getAttribute( 'data-sclt-last' ) );
+
+				if ( ! list ) {
+					list = document.createElement( 'ul' );
+					elem.appendChild( list );
+				}
+
+				if ( 0 === last ) {
+					updateNow = true;
+				}
+
+				return {
+					w: elem.getAttribute( 'data-sclt-ticker' ),
+					l: elem.getAttribute( 'data-sclt-limit' ),
+					t: last,
+					e: list,
+				};
+			}
+		);
+
+		// Trigger update, if necessary.
+		if ( ( 0 < ticker.length || widgets.length ) && 0 < pollInterval ) {
+			if ( updateNow ) {
+				update();
+			} else {
+				setTimeout( update, pollInterval );
 			}
 		}
 	};
-	xhr.send( updateReq );
-};
 
-/**
- * Do actual update of HTML code.
- *
- * @param {Object}      t   Ticker or Widget reference.
- * @param {number}      t.l Limit of entries to display.
- * @param {HTMLElement} t.e HTML element of the ticker/widget.
- * @param {Object}      u   Update entity.
- * @param {string}      u.h HTML code to append.
- * @param {number}      u.t Timetsamp of last update.
- * @return {void}
- */
-scLiveticker.updateHTML = function( t, u ) {
-	// Prepend HTML of new ticks.
-	t.e.innerHTML = u.h + t.e.innerHTML;
-	t.e.parentNode.setAttribute( 'data-sclt-last', u.t );
+	/**
+	 * Update liveticker on current page via AJAX call.
+	 *
+	 * @return {void}
+	 */
+	var update = function() {
+		// Extract ticker-slug, limit and timestamp of last poll.
+		var updateReq = 'action=sclt_update-ticks&_ajax_nonce=' + nonce;
+		var i, j;
+		var xhr = new XMLHttpRequest();
 
-	// Remove tail, if limit is set.
-	if ( 0 < t.l ) {
-		[].slice.call( t.e.getElementsByTagName( 'li' ), t.l ).forEach(
-			function( li ) {
-				li.remove();
+		for ( i = 0; i < ticker.length; i++ ) {
+			updateReq = updateReq +
+				'&update[' + i + '][s]=' + ticker[ i ].s +
+				'&update[' + i + '][l]=' + ticker[ i ].l +
+				'&update[' + i + '][t]=' + ticker[ i ].t;
+		}
+		for ( j = 0; j < widgets.length; j++ ) {
+			updateReq = updateReq +
+				'&update[' + ( i + j ) + '][w]=' + widgets[ j ].w +
+				'&update[' + ( i + j ) + '][l]=' + widgets[ j ].l +
+				'&update[' + ( i + j ) + '][t]=' + widgets[ j ].t;
+		}
+
+		// Issue AJAX request.
+		xhr.open( 'POST', ajaxURL, true );
+		xhr.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded;' );
+		xhr.onreadystatechange = function() {
+			var updateResp;
+			if ( XMLHttpRequest.DONE === this.readyState && 200 === this.status ) {
+				try {
+					updateResp = JSON.parse( this.responseText );
+					if ( updateResp ) {
+						updateResp.forEach(
+							function( u ) {
+								ticker.forEach(
+									function( t ) {
+										if ( t.s === u.s ) {
+											t.t = u.t;					// Update last poll timestamp.
+											updateHTML( t, u );	// Update HTML markup.
+										}
+									}
+								);
+								widgets.forEach(
+									function( t ) {
+										if ( t.w === u.w ) {
+											t.t = u.t;
+											updateHTML( t, u );
+										}
+									}
+								);
+							}
+						);
+					}
+					setTimeout( update, pollInterval );		// Re-trigger update.
+				} catch ( e ) {
+					// eslint-disable-next-line no-console
+					console.warn( 'Liveticker AJAX update failed, stopping automatic updates.' );
+				}
 			}
-		);
-	}
-};
+		};
+		xhr.send( updateReq );
+	};
 
-document.addEventListener(
-	'DOMContentLoaded',
-	function() {
-		scLiveticker.init();	// Trigger periodic update of livetickers.
-	}
-);
+	/**
+	 * Do actual update of HTML code.
+	 *
+	 * @param {Object}      t   Ticker or Widget reference.
+	 * @param {number}      t.l Limit of entries to display.
+	 * @param {HTMLElement} t.e HTML element of the ticker/widget.
+	 * @param {Object}      u   Update entity.
+	 * @param {string}      u.h HTML code to append.
+	 * @param {number}      u.t Timetsamp of last update.
+	 * @return {void}
+	 */
+	var updateHTML = function( t, u ) {
+		// Prepend HTML of new ticks.
+		t.e.innerHTML = u.h + t.e.innerHTML;
+		t.e.parentNode.setAttribute( 'data-sclt-last', u.t );
+
+		// Remove tail, if limit is set.
+		if ( 0 < t.l ) {
+			[].slice.call( t.e.getElementsByTagName( 'li' ), t.l ).forEach(
+				function( li ) {
+					li.remove();
+				}
+			);
+		}
+	};
+
+	document.addEventListener(
+		'DOMContentLoaded',
+		function() {
+			init();	// Trigger periodic update of livetickers.
+		}
+	);
+}() );