diff --git a/js/post-hover.js b/js/post-hover.js
index 780f8cff..215e6285 100644
--- a/js/post-hover.js
+++ b/js/post-hover.js
@@ -13,59 +13,62 @@
  *
  */
 
-onready(function(){
-	var dont_fetch_again = [];
-	init_hover = function() {
-		var $link = $(this);
-		
-		var id;
-		var matches;
+onready(function() {
+	let dontFetchAgain = [];
+	initHover = function() {
+		let link = $(this);
+		let id;
+		let matches;
 
-                if ($link.is('[data-thread]')) {
-                        id = $link.attr('data-thread');
-                }
-		else if(matches = $link.text().match(/^>>(?:>\/([^\/]+)\/)?(\d+)$/)) {
+		if (link.is('[data-thread]')) {
+			id = link.attr('data-thread');
+		} else if (matches = link.text().match(/^>>(?:>\/([^\/]+)\/)?(\d+)$/)) {
 			id = matches[2];
-		}
-		else {
+		} else {
 			return;
 		}
-		
-		var board = $(this);
+
+		let board = $(this);
 		while (board.data('board') === undefined) {
 			board = board.parent();
 		}
-		var threadid;
-		if ($link.is('[data-thread]')) threadid = 0;
-		else threadid = board.attr('id').replace("thread_", "");
+		let threadid;
+		if (link.is('[data-thread]')) {
+			threadid = 0;
+		} else {
+			threadid = board.attr('id').replace("thread_", "");
+		}
 
 		board = board.data('board');
 
-		var parentboard = board;
-		
-		if ($link.is('[data-thread]')) parentboard = $('form[name="post"] input[name="board"]').val();
-		else if (matches[1] !== undefined) board = matches[1];
+		let parentboard = board;
 
-		var $post = false;
-		var hovering = false;
-		var hovered_at;
-		$link.hover(function(e) {
+		if (link.is('[data-thread]')) {
+			parentboard = $('form[name="post"] input[name="board"]').val();
+		} else if (matches[1] !== undefined) {
+			board = matches[1];
+		}
+
+		let post = false;
+		let hovering = false;
+		let hoveredAt;
+		link.hover(function(e) {
 			hovering = true;
-			hovered_at = {'x': e.pageX, 'y': e.pageY};
-			
-			var start_hover = function($link) {
-				if ($post.is(':visible') &&
-						$post.offset().top >= $(window).scrollTop() &&
-						$post.offset().top + $post.height() <= $(window).scrollTop() + $(window).height()) {
-					// post is in view
-					$post.addClass('highlighted');
-				} else {
-					var $newPost = $post.clone();
-					$newPost.find('>.reply, >br').remove();
-					$newPost.find('span.mentioned').remove();
-					$newPost.find('a.post_anchor').remove();
+			hoveredAt = {'x': e.pageX, 'y': e.pageY};
 
-					$newPost
+			let startHover = function(link) {
+				if (post.is(':visible') &&
+						post.offset().top >= $(window).scrollTop() &&
+						post.offset().top + post.height() <= $(window).scrollTop() + $(window).height()) {
+					// post is in view
+					post.addClass('highlighted');
+				} else {
+					let newPost = post.clone();
+					newPost.find('>.reply, >br').remove();
+					newPost.find('span.mentioned').remove();
+					newPost.find('a.post_anchor').remove();
+
+					newPost
 						.attr('id', 'post-hover-' + id)
 						.attr('data-board', board)
 						.addClass('post-hover')
@@ -76,95 +79,99 @@ onready(function(){
 						.css('font-style', 'normal')
 						.css('z-index', '100')
 						.addClass('reply').addClass('post')
-						.insertAfter($link.parent())
+						.insertAfter(link.parent())
 
-					$link.trigger('mousemove');
+					link.trigger('mousemove');
 				}
 			};
-			
-			$post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
-			if($post.length > 0) {
-				start_hover($(this));
+
+			post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
+			if (post.length > 0) {
+				startHover($(this));
 			} else {
-				var url = $link.attr('href').replace(/#.*$/, '');
-				
-				if($.inArray(url, dont_fetch_again) != -1) {
+				let url = link.attr('href').replace(/#.*$/, '');
+
+				if ($.inArray(url, dontFetchAgain) != -1) {
 					return;
 				}
-				dont_fetch_again.push(url);
-				
+				dontFetchAgain.push(url);
+
 				$.ajax({
 					url: url,
 					context: document.body,
 					success: function(data) {
-						var mythreadid = $(data).find('div[id^="thread_"]').attr('id').replace("thread_", "");
+						let mythreadid = $(data).find('div[id^="thread_"]').attr('id').replace("thread_", "");
 
 						if (mythreadid == threadid && parentboard == board) {
 							$(data).find('div.post.reply').each(function() {
-								if($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
+								if ($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
 									$('[data-board="' + board + '"]#thread_' + threadid + " .post.reply:first").before($(this).hide().addClass('hidden'));
 								}
 							});
-						}
-						else if ($('[data-board="' + board + '"]#thread_'+mythreadid).length > 0) {
+						} else if ($('[data-board="' + board + '"]#thread_' + mythreadid).length > 0) {
 							$(data).find('div.post.reply').each(function() {
-								if($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
+								if ($('[data-board="' + board + '"] #' + $(this).attr('id')).length == 0) {
 									$('[data-board="' + board + '"]#thread_' + mythreadid + " .post.reply:first").before($(this).hide().addClass('hidden'));
 								}
 							});
-						}
-						else {
+						} else {
 							$(data).find('div[id^="thread_"]').hide().attr('data-cached', 'yes').prependTo('form[name="postcontrols"]');
 						}
 
-						$post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
+						post = $('[data-board="' + board + '"] div.post#reply_' + id + ', [data-board="' + board + '"]div#thread_' + id);
 
-						if(hovering && $post.length > 0) {
-							start_hover($link);
+						if (hovering && post.length > 0) {
+							startHover(link);
 						}
 					}
 				});
 			}
 		}, function() {
 			hovering = false;
-			if(!$post)
+			if (!post) {
 				return;
-			
-			$post.removeClass('highlighted');
-			if($post.hasClass('hidden') || $post.data('cached') == 'yes')
-				$post.css('display', 'none');
+			}
+
+			post.removeClass('highlighted');
+			if (post.hasClass('hidden') || post.data('cached') == 'yes') {
+				post.css('display', 'none');
+			}
 			$('.post-hover').remove();
 		}).mousemove(function(e) {
-			if(!$post)
+			if (!post) {
 				return;
-			
-			var $hover = $('#post-hover-' + id + '[data-board="' + board + '"]');
-			if($hover.length == 0)
-				return;
-
-			var scrollTop = $(window).scrollTop();
-			if ($link.is("[data-thread]")) scrollTop = 0;
-			var epy = e.pageY;
-			if ($link.is("[data-thread]")) epy -= $(window).scrollTop();			
-
-			var top = (epy ? epy : hovered_at['y']) - 10;
-			
-			if(epy < scrollTop + 15) {
-				top = scrollTop;
-			} else if(epy > scrollTop + $(window).height() - $hover.height() - 15) {
-				top = scrollTop + $(window).height() - $hover.height() - 15;
 			}
-			
-			
-			$hover.css('left', (e.pageX ? e.pageX : hovered_at['x'])).css('top', top);
+
+			let hover = $('#post-hover-' + id + '[data-board="' + board + '"]');
+			if (hover.length == 0) {
+				return;
+			}
+
+			let scrollTop = $(window).scrollTop();
+			if (link.is("[data-thread]")) {
+				scrollTop = 0;
+			}
+			let epy = e.pageY;
+			if (link.is("[data-thread]")) {
+				epy -= $(window).scrollTop();
+			}
+
+			let top = (epy ? epy : hoveredAt['y']) - 10;
+
+			if (epy < scrollTop + 15) {
+				top = scrollTop;
+			} else if (epy > scrollTop + $(window).height() - hover.height() - 15) {
+				top = scrollTop + $(window).height() - hover.height() - 15;
+			}
+
+			hover.css('left', (e.pageX ? e.pageX : hoveredAt['x'])).css('top', top);
 		});
 	};
-	
-	$('div.body a:not([rel="nofollow"])').each(init_hover);
-	
+
+	$('div.body a:not([rel="nofollow"])').each(initHover);
+
 	// allow to work with auto-reload.js, etc.
 	$(document).on('new_post', function(e, post) {
-		$(post).find('div.body a:not([rel="nofollow"])').each(init_hover);
+		$(post).find('div.body a:not([rel="nofollow"])').each(initHover);
 	});
 });
-