diff --git a/index.php b/index.php
index 42b2c74..89ebc62 100644
--- a/index.php
+++ b/index.php
@@ -155,7 +155,7 @@ if (file_exists(dirname(__FILE__)."/plugins/jshint/jshint.js")) {
 		<a nohref onClick="top.ICEcoder.alphaTabs()"><img src="images/nav-alpha.png" class="alphaTabs" title="Alphabetize tabs"></a>
 		<?php
 		for ($i=1;$i<=100;$i++) {
-			echo '<div id="tab'.$i.'" class="tab" onMouseDown="ICEcoder.canSwitchTabs ? ICEcoder.switchTab(parseInt(this.id.slice(3),10)) : ICEcoder.canSwitchTabs=true; thisColor=top.ICEcoder.tabFGselected; if (!top.ICEcoder.overCloseLink) {ICEcoder.tabDragStart(parseInt(this.id.slice(3),10))}" onMouseOver="thisColor=this.style.color;this.style.color=top.ICEcoder.tabFGselected" onMouseOut="this.style.color=thisColor"></div>';
+			echo '<div id="tab'.$i.'" class="tab" onMouseDown="ICEcoder.canSwitchTabs ? ICEcoder.switchTab(parseInt(this.id.slice(3),10)) : ICEcoder.canSwitchTabs=true; thisColor=top.ICEcoder.tabFGselected; if (!top.ICEcoder.overCloseLink) {ICEcoder.tabDragStart(parseInt(this.id.slice(3),10))}; if (event.button==1) {ICEcoder.closeTab(parseInt(this.id.slice(3),10)); return false};" onMouseOver="thisColor=this.style.color;this.style.color=top.ICEcoder.tabFGselected" onMouseOut="this.style.color=thisColor"></div>';
 		}
 		?><div class="newTab" onClick="ICEcoder.newTab()" id="newTab">+</div>
 	</div>
diff --git a/lib/help.php b/lib/help.php
index cf3a84d..aff66ac 100644
--- a/lib/help.php
+++ b/lib/help.php
@@ -62,7 +62,10 @@
 	<span class="key">Ctrl <span class="plus">+</span> Shift <span class="plus">+</span> s</span> <span class="shortcut">Save as...</span><br>
 	<span class="key">Ctrl <span class="plus">+</span> Enter</span> <span class="shortcut">View webpage</span><br>
 	<span class="key">Space</span> <span class="shortcut">Refocus on document</span><br>
-	<span class="key">Esc</span> <span class="shortcut">Cancel tasks</span><br>
+	<span class="key">Esc</span> <span class="shortcut">Cancel tasks</span><br><br>
+
+	<h2>On Tabs</h2>
+	<span class="key">Middle click</span> <span class="shortcut">Close tab</span><br>
 
 </div>