diff --git a/phpBB/adm/style/ajax.js b/phpBB/adm/style/ajax.js
index 50477eef90..2725d9fa0a 100644
--- a/phpBB/adm/style/ajax.js
+++ b/phpBB/adm/style/ajax.js
@@ -8,8 +8,9 @@
  * activates any up / down icons that require it (the ones at the top or bottom).
  */
 phpbb.add_ajax_callback('forum_down', function() {
-	el = $(this);
-	var tr = el.parents('tr');
+	var el = $(this),
+		tr = el.parents('tr');
+
 	if (tr.is(':first-child'))
 	{
 		el.parents('span').siblings('.up').html('<a href="' + tr.attr('data-up') + '"><img src="./images/icon_up.gif" alt="Move up" title="Move up" /></a>');
@@ -23,9 +24,12 @@ phpbb.add_ajax_callback('forum_down', function() {
 		tr.prev().find('.down').html('<a href="' + tr.attr('data-down') + '"><img src="./images/icon_down.gif" alt="Move down" title="Move down" /></a>');
 		phpbb.ajaxify({selector: tr.prev().find('.down').children('a')}, false, 'forum_down');
 	}
-}).add_ajax_callback('forum_up', function() {
-	el = $(this);
-	var tr = el.parents('tr');
+});
+
+phpbb.add_ajax_callback('forum_up', function() {
+	var el = $(this),
+		tr = el.parents('tr');
+
 	if (tr.is(':last-child'))
 	{
 		el.parents('span').siblings('.down').html('<a href="' + tr.attr('data-down') + '"><img src="./images/icon_down.gif" alt="Move down" title="Move down" /></a>');
@@ -47,9 +51,9 @@ phpbb.add_ajax_callback('forum_down', function() {
  * in the href with "deactivate", and vice versa.
  */
 phpbb.add_ajax_callback('activate_deactivate', function(res) {
-	el = $(this);
+	var el = $(this),
+		new_href = el.attr('href');
 	el.text(res.text);
-	var new_href = el.attr('href');
 	if (new_href.indexOf('deactivate') !== -1)
 	{
 		new_href = new_href.replace('deactivate', 'activate')
@@ -72,10 +76,13 @@ phpbb.add_ajax_callback('row_delete', function() {
 
 
 $('[data-ajax]').each(function() {
-	var $this = $(this), ajax = $this.attr('data-ajax');
+	var $this = $(this),
+		ajax = $this.attr('data-ajax'),
+		fn;
+
 	if (ajax !== 'false')
 	{
-		var fn = (ajax !== 'true') ? ajax : null;
+		fn = (ajax !== 'true') ? ajax : null;
 		phpbb.ajaxify({selector: this}, $this.attr('data-refresh') !== undefined, fn);
 	}
 });
diff --git a/phpBB/assets/javascript/core.js b/phpBB/assets/javascript/core.js
index 68f7cf4ed8..9c5f507bb8 100644
--- a/phpBB/assets/javascript/core.js
+++ b/phpBB/assets/javascript/core.js
@@ -61,8 +61,10 @@ phpbb.alert = function(title, msg, fadedark) {
 		e.stopPropagation();
 	});
 	dark.one('click', function(e) {
+		var fade;
+
 		div.find('.alert_close').unbind('click');
-		var fade = (typeof fadedark !== 'undefined' && !fadedark) ? div : dark;
+		fade = (typeof fadedark !== 'undefined' && !fadedark) ? div : dark;
 		fade.fadeOut(phpbb.alert_time, function() {
 			div.hide();
 		});
@@ -261,6 +263,8 @@ phpbb.ajaxify = function(options, refresh, callback) {
 		 */
 		function return_handler(res)
 		{
+			var alert;
+
 			// Is a confirmation required?
 			if (typeof res.S_CONFIRM_ACTION === 'undefined')
 			{
@@ -268,7 +272,7 @@ phpbb.ajaxify = function(options, refresh, callback) {
 				// callbacks.
 				if (typeof res.MESSAGE_TITLE !== 'undefined')
 				{
-					var alert = phpbb.alert(res.MESSAGE_TITLE, res.MESSAGE_TEXT);
+					alert = phpbb.alert(res.MESSAGE_TITLE, res.MESSAGE_TEXT);
 				}
 				else
 				{
diff --git a/phpBB/styles/prosilver/template/ajax.js b/phpBB/styles/prosilver/template/ajax.js
index a0f0c820ba..bf7551b8b8 100644
--- a/phpBB/styles/prosilver/template/ajax.js
+++ b/phpBB/styles/prosilver/template/ajax.js
@@ -3,10 +3,12 @@
 
 // This callback finds the post from the delete link, and removes it.
 phpbb.add_ajax_callback('post_delete', function() {
-	var el = $(this);
+	var el = $(this),
+		post_id;
+
 	if (el.attr('data-refresh') === undefined)
 	{
-		var post_id = el[0].href.split('&p=')[1];
+		post_id = el[0].href.split('&p=')[1];
 		el.parents('#p' + post_id).fadeOut(function() {
 			$(this).remove();
 		});
@@ -34,20 +36,25 @@ phpbb.add_ajax_callback('row_delete', function() {
 
 // This handles friend / foe additions removals.
 phpbb.add_ajax_callback('zebra', function(res) {
+	var zebra;
+
 	if (res.success) {
-		var zebra = $('.zebra');
+		zebra = $('.zebra');
 		zebra.html(res.MESSAGE_TEXT);
 		$(zebra.get(1)).remove();
 	}
-});;
+});
 
 
 
 $('[data-ajax]').each(function() {
-	var $this = $(this), ajax = $this.attr('data-ajax');
+	var $this = $(this),
+		ajax = $this.attr('data-ajax'),
+		fn;
+
 	if (ajax !== 'false')
 	{
-		var fn = (ajax !== 'true') ? ajax : null;
+		fn = (ajax !== 'true') ? ajax : null;
 		phpbb.ajaxify({selector: this}, $this.attr('data-refresh') !== undefined, fn);
 	}
 });