diff --git a/feedlist.js b/feedlist.js
index 62bfadb5a..0020de179 100644
--- a/feedlist.js
+++ b/feedlist.js
@@ -328,7 +328,6 @@ function feedlist_init() {
 		
 		hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 		document.onkeydown = hotkey_handler;
-		document.onmousedown = mouse_handler;
 		setTimeout("timeout()", 0);
 
 /*		debug("about to remove splash, OMG!");
@@ -468,23 +467,3 @@ function remove_splash() {
 		debug("removed splash!");
 	}
 }
-
-function feedMouseIn(id) {
-	try {
-		if (feed_under_pointer != id) {
-			feed_under_pointer = id;
-		}
-
-	} catch (e) {
-		exception_error("feedMouseIn", e);
-	}
-}
-
-function feedMouseOut(id) {
-	try {
-		feed_under_pointer = undefined;
-	} catch (e) {
-		exception_error("feedMouseOut", e);
-	}
-}
-
diff --git a/functions.js b/functions.js
index 997bcb13b..01de05b22 100644
--- a/functions.js
+++ b/functions.js
@@ -1,5 +1,4 @@
 var hotkeys_enabled = true;
-var debug_mode_enabled = false;
 var xmlhttp_rpc = Ajax.getTransport();
 var notify_silent = false;
 var last_progress_point = 0;
@@ -1384,7 +1383,7 @@ function debug(msg) {
 	}
 
 	var c = document.getElementById('debug_output');
-	if (c && c.style.display == "block") {
+	if (c && Element.visible(c)) {
 		while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
 			c.removeChild(c.lastChild);
 		}
diff --git a/functions.php b/functions.php
index 0c333afc3..a2d1750c4 100644
--- a/functions.php
+++ b/functions.php
@@ -1533,8 +1533,7 @@
 		$feed = "<a title=\"$link_title\" id=\"FEEDL-$feed_id\" 
 			href=\"javascript:viewfeed('$feed_id', '', false, '', false, 0);\">$feed_title</a>";
 
-		print "<li id=\"FEEDR-$feed_id\" class=\"$class\"
-			onmouseover='feedMouseIn($feed_id)' onmouseout='feedMouseOut($feed_id)'>";
+		print "<li id=\"FEEDR-$feed_id\" class=\"$class\">";
 		if (get_pref($link, 'ENABLE_FEED_ICONS')) {
 			print "$feed_icon";
 		}
diff --git a/prefs.js b/prefs.js
index 698bc7163..41b4d7688 100644
--- a/prefs.js
+++ b/prefs.js
@@ -1447,7 +1447,7 @@ function init() {
 		arguments.callee.done = true;		
 
 		if (getURLParam('debug')) {
-			document.getElementById('debug_output').style.display = 'block';
+			Element.show("debug_output");
 			debug('debug mode activated');
 		}
 
@@ -1743,14 +1743,12 @@ function pref_hotkey_handler(e) {
 		if (!hotkey_prefix) {
 
 			if (keycode == 68 && shift_key) { // d
-				if (!debug_mode_enabled) {
-					document.getElementById('debug_output').style.display = 'block';
+				if (!Element.visible("debug_output")) {
+					Element.show("debug_output");
 					debug('debug mode activated');
 				} else {
-					document.getElementById('debug_output').style.display = 'none';
+					Element.hide("debug_output");
 				}
-	
-				debug_mode_enabled = !debug_mode_enabled;
 				return;
 			}
 	
diff --git a/prefs.php b/prefs.php
index 288a5f2be..d411a3704 100644
--- a/prefs.php
+++ b/prefs.php
@@ -84,7 +84,7 @@ if (document.addEventListener) {
 window.onload = init;
 </script>
 
-<ul id="debug_output"></ul>
+<ul id="debug_output" style='display : none'></ul>
 
 <div id="fatal_error"><div id="fatal_error_inner">
 	<h1>Fatal Error</h1>
diff --git a/tt-rss.css b/tt-rss.css
index b92e8f9aa..32517c511 100644
--- a/tt-rss.css
+++ b/tt-rss.css
@@ -1208,7 +1208,6 @@ a.cdmToggleLink:hover {
 	bottom : 20px;
 	z-index : 999;
 	background-color : white;
-	display : none;
 	border : 1px solid #c0c0c0;
 	overflow : auto;
 	margin : 0px;
diff --git a/tt-rss.js b/tt-rss.js
index 5c13ca57a..482ddabf8 100644
--- a/tt-rss.js
+++ b/tt-rss.js
@@ -338,7 +338,7 @@ function init() {
 			return;
 
 		if (getURLParam('debug')) {
-			document.getElementById('debug_output').style.display = 'block';
+			Element.show("debug_output");
 			debug('debug mode activated');
 		}
 
@@ -967,11 +967,11 @@ function hotkey_handler(e) {
 		if (!hotkey_prefix) {
 
 			if (keycode == 68 && shift_key) { // d
-				if (!debug_mode_enabled) {
-					document.getElementById('debug_output').style.display = 'block';
+				if (!Element.visible("debug_output")) {
+					Element.show("debug_output");
 					debug('debug mode activated');
 				} else {
-					document.getElementById('debug_output').style.display = 'none';
+					Element.hide("debug_output");
 				}
 	
 				return;
@@ -1407,18 +1407,3 @@ function hotkey_handler(e) {
 		exception_error("hotkey_handler", e);
 	}
 }
-
-function mouse_handler(e) {
-	try {
-		var r_mouse = false;
-
-		if (window.event) {
-			r_mouse = window.event.button == 2;
-		} else if (e) {
-			r_mouse = e.which == 3;
-		}
-
-	} catch (e) {
-		exception_error("mouse_handler", e);
-	}
-}
diff --git a/tt-rss.php b/tt-rss.php
index c2ef53ce0..1de9ce87a 100644
--- a/tt-rss.php
+++ b/tt-rss.php
@@ -109,7 +109,7 @@ if (document.addEventListener) {
 window.onload = init;
 </script>
 
-<ul id="debug_output"></ul>
+<ul id="debug_output" style='display : none'></ul>
 
 <div id="infoBoxShadow"><div id="infoBox">&nbsp;</div></div>