diff --git a/reviewboard/htdocs/media/rb/css/thickbox.css b/reviewboard/htdocs/media/rb/css/thickbox.css
--- /dev/null
+++ b/reviewboard/htdocs/media/rb/css/thickbox.css
@@ -0,0 +1,141 @@
+/* ----------------------------------------------------------------------------------------------------------------*/
+/* ---------->>> global settings needed for thickbox <<<-----------------------------------------------------------*/
+/* ----------------------------------------------------------------------------------------------------------------*/
+*{padding: 0; margin: 0;}
+/* ----------------------------------------------------------------------------------------------------------------*/
+/* ---------->>> thickbox specific link and font settings <<<------------------------------------------------------*/
+/* ----------------------------------------------------------------------------------------------------------------*/
+#TB_window {
+  font: 12px Arial, Helvetica, sans-serif;
+  color: #333333;
+}
+#TB_secondLine {
+  font: 10px Arial, Helvetica, sans-serif;
+  color:#666666;
+}
+#TB_window a:link {color: #666666;}
+#TB_window a:visited {color: #666666;}
+#TB_window a:hover {color: #000;}
+#TB_window a:active {color: #666666;}
+#TB_window a:focus{color: #666666;}
+/* ----------------------------------------------------------------------------------------------------------------*/
+/* ---------->>> thickbox settings <<<-----------------------------------------------------------------------------*/
+/* ----------------------------------------------------------------------------------------------------------------*/
+#TB_overlay {
+  position: fixed;
+  z-index:100;
+  top: 0px;
+  left: 0px;
+  height:100%;
+  width:100%;
+}
+.TB_overlayMacFFBGHack {background: url(macFFBgHack.png) repeat;}
+.TB_overlayBG {
+  background-color:#000;
+  filter:alpha(opacity=75);
+  -moz-opacity: 0.75;
+  opacity: 0.75;
+}
+* html #TB_overlay { /* ie6 hack */
+     position: absolute;
+     height: expression(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + 'px');
+}
+#TB_window {
+  position: fixed;
+  background: #ffffff;
+  z-index: 102;
+  color:#000000;
+  display:none;
+  border: 4px solid #525252;
+  text-align:left;
+  top:50%;
+  left:50%;
+}
+* html #TB_window { /* ie6 hack */
+position: absolute;
+margin-top: expression(0 - parseInt(this.offsetHeight / 2) + (TBWindowMargin = document.documentElement && document.documentElement.scrollTop || document.body.scrollTop) + 'px');
+}
+#TB_window img#TB_Image {
+  display:block;
+  margin: 15px 0 0 15px;
+  border-right: 1px solid #ccc;
+  border-bottom: 1px solid #ccc;
+  border-top: 1px solid #666;
+  border-left: 1px solid #666;
+}
+#TB_caption{
+  height:25px;
+  padding:7px 30px 10px 25px;
+  float:left;
+}
+#TB_closeWindow{
+  height:25px;
+  padding:11px 25px 10px 0;
+  float:right;
+}
+#TB_closeAjaxWindow{
+  padding:7px 10px 5px 0;
+  margin-bottom:1px;
+  text-align:right;
+  float:right;
+}
+#TB_ajaxWindowTitle{
+  float:left;
+  padding:7px 0 5px 10px;
+  margin-bottom:1px;
+}
+#TB_title{
+  background-color:#e8e8e8;
+  height:27px;
+}
+#TB_ajaxContent{
+  clear:both;
+  padding:2px 15px 15px 15px;
+  overflow:auto;
+  text-align:left;
+  line-height:1.4em;
+}
+#TB_ajaxContent.TB_modal{
+  padding:15px;
+}
+#TB_ajaxContent p{
+  padding:5px 0px 5px 0px;
+}
+#TB_load{
+  position: fixed;
+  display:none;
+  height:13px;
+  width:208px;
+  z-index:103;
+  top: 50%;
+  left: 50%;
+  margin: -6px 0 0 -104px; /* -height/2 0 0 -width/2 */
+}
+* html #TB_load { /* ie6 hack */
+position: absolute;
+margin-top: expression(0 - parseInt(this.offsetHeight / 2) + (TBWindowMargin = document.documentElement && document.documentElement.scrollTop || document.body.scrollTop) + 'px');
+}
+#TB_HideSelect{
+  z-index:99;
+  position:fixed;
+  top: 0;
+  left: 0;
+  background-color:#fff;
+  border:none;
+  filter:alpha(opacity=0);
+  -moz-opacity: 0;
+  opacity: 0;
+  height:100%;
+  width:100%;
+}
+* html #TB_HideSelect { /* ie6 hack */
+     position: absolute;
+     height: expression(document.body.scrollHeight > document.body.offsetHeight ? document.body.scrollHeight : document.body.offsetHeight + 'px');
+}
+#TB_iframeContent{
+  clear:both;
+  border:none;
+  margin-bottom:-1px;
+  margin-top:1px;
+  _margin-bottom:1px;
+}
\ No newline at end of file
diff --git a/reviewboard/htdocs/media/rb/js/diff_keyboard_shortcuts.js b/reviewboard/htdocs/media/rb/js/diff_keyboard_shortcuts.js
--- /dev/null
+++ b/reviewboard/htdocs/media/rb/js/diff_keyboard_shortcuts.js
@@ -0,0 +1,78 @@
+/*
+ * A list of key bindings for the page.
+ */
+var gActions = [
+    { // Previous file
+        keys: "aAKP<m",
+        onPress: function() {
+            scrollToAnchor(GetNextAnchor(BACKWARD, ANCHOR_FILE));
+        },
+    	description: "Previous file"
+    },
+
+    { // Next file
+        keys: "fFJN>",
+        onPress: function() {
+            scrollToAnchor(GetNextAnchor(FORWARD, ANCHOR_FILE));
+        },
+    	description: "Next file"
+    },
+
+    { // Previous diff
+        keys: "sSkp,",
+        onPress: function() {
+            scrollToAnchor(GetNextAnchor(BACKWARD, ANCHOR_CHUNK | ANCHOR_FILE));
+        },
+    	description: "Previous diff"
+    },
+
+    { // Next diff
+        keys: "dDjn.",
+        onPress: function() {
+            scrollToAnchor(GetNextAnchor(FORWARD, ANCHOR_CHUNK | ANCHOR_FILE));
+        },
+    	description: "Next diff"
+    },
+
+    { // Recenter
+        keys: unescape("0D%"),
+        onPress: function() { scrollToAnchor(gAnchors[gSelectedAnchor]); },
+    	description: "Recenter"
+    },
+
+    { // Previous comment
+        keys: "[x",
+        onPress: function() {
+            scrollToAnchor(GetNextAnchor(BACKWARD, ANCHOR_COMMENT));
+        },
+    	description: "Previous comment"
+    },
+
+    { // Next comment
+        keys: "]c",
+        onPress: function() {
+            scrollToAnchor(GetNextAnchor(FORWARD, ANCHOR_COMMENT));
+        },
+    	description: "Next comment"
+    },
+
+    { // Go to header
+        keys: "gu;",
+        onPress: function() {},
+    	description: "Go to header"
+    },
+
+    { // Go to footer
+        keys: "GU:",
+        onPress: function() {},
+    	description: "Go to footer"
+    },
+
+    { // Go to footer
+        keys: "?",
+        onPress: function() {
+    		displayHelpScreen();
+    	},
+    	description: "Show Help"
+    }
+];
\ No newline at end of file
diff --git a/reviewboard/htdocs/media/rb/js/diffviewer.js b/reviewboard/htdocs/media/rb/js/diffviewer.js
--- a/reviewboard/htdocs/media/rb/js/diffviewer.js
+++ b/reviewboard/htdocs/media/rb/js/diffviewer.js
@@ -13,70 +13,6 @@ var ANCHOR_CHUNK = 4;
 // State
 var gDiff;
 
-
-/*
- * A list of key bindings for the page.
- */
-var gActions = [
-    { // Previous file
-        keys: "aAKP<m",
-        onPress: function() {
-            scrollToAnchor(GetNextAnchor(BACKWARD, ANCHOR_FILE));
-        }
-    },
-
-    { // Next file
-        keys: "fFJN>",
-        onPress: function() {
-            scrollToAnchor(GetNextAnchor(FORWARD, ANCHOR_FILE));
-        }
-    },
-
-    { // Previous diff
-        keys: "sSkp,,",
-        onPress: function() {
-            scrollToAnchor(GetNextAnchor(BACKWARD, ANCHOR_CHUNK | ANCHOR_FILE));
-        }
-    },
-
-    { // Next diff
-        keys: "dDjn..",
-        onPress: function() {
-            scrollToAnchor(GetNextAnchor(FORWARD, ANCHOR_CHUNK | ANCHOR_FILE));
-        }
-    },
-
-    { // Recenter
-        keys: unescape("%0D"),
-        onPress: function() { scrollToAnchor(gAnchors[gSelectedAnchor]); }
-    },
-
-    { // Previous comment
-        keys: "[x",
-        onPress: function() {
-            scrollToAnchor(GetNextAnchor(BACKWARD, ANCHOR_COMMENT));
-        }
-    },
-
-    { // Next comment
-        keys: "]c",
-        onPress: function() {
-            scrollToAnchor(GetNextAnchor(FORWARD, ANCHOR_COMMENT));
-        }
-    },
-
-    { // Go to header
-        keys: "gu;",
-        onPress: function() {}
-    },
-
-    { // Go to footer
-        keys: "GU:",
-        onPress: function() {}
-    }
-];
-
-
 // State variables
 var gSelectedAnchor = INVALID;
 var gFileAnchorToId = {};
diff --git a/reviewboard/htdocs/media/rb/js/thickbox.js b/reviewboard/htdocs/media/rb/js/thickbox.js
--- /dev/null
+++ b/reviewboard/htdocs/media/rb/js/thickbox.js
@@ -0,0 +1,306 @@
+/*
+ * Thickbox 3.1 - One Box To Rule Them All.
+ * By Cody Lindley (http://www.codylindley.com)
+ * Copyright (c) 2007 cody lindley
+ * Licensed under the MIT License: http://www.opensource.org/licenses/mit-license.php
+*/
+		  
+var tb_pathToImage = "images/spinner.gif";
+
+/*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/
+
+//on page load call tb_init
+$(document).ready(function(){   
+	tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
+	imgLoader = new Image();// preload image
+	imgLoader.src = tb_pathToImage;
+});
+
+//add thickbox to href & area elements that have a class of .thickbox
+function tb_init(domChunk){
+	$(domChunk).click(function(){
+	var t = this.title || this.name || null;
+	var a = this.href || this.alt;
+	var g = this.rel || false;
+	tb_show(t,a,g);
+	this.blur();
+	return false;
+	});
+}
+
+function tb_show(caption, url, imageGroup) {//function called when the user clicks on a thickbox link
+
+	try {
+		if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
+			$("body","html").css({height: "100%", width: "100%"});
+			$("html").css("overflow","hidden");
+			if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
+				$("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
+				$("#TB_overlay").click(tb_remove);
+			}
+		}else{//all others
+			if(document.getElementById("TB_overlay") === null){
+				$("body").append("<div id='TB_overlay'></div><div id='TB_window'></div>");
+				$("#TB_overlay").click(tb_remove);
+			}
+		}
+		
+		if(tb_detectMacXFF()){
+			$("#TB_overlay").addClass("TB_overlayMacFFBGHack");//use png overlay so hide flash
+		}else{
+			$("#TB_overlay").addClass("TB_overlayBG");//use background and opacity
+		}
+		
+		if(caption===null){caption="";}
+		$("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' /></div>");//add loader to the page
+		$('#TB_load').show();//show loader
+		
+		var baseURL;
+	   if(url.indexOf("?")!==-1){ //ff there is a query string involved
+			baseURL = url.substr(0, url.indexOf("?"));
+	   }else{ 
+	   		baseURL = url;
+	   }
+	   
+	   var urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
+	   var urlType = baseURL.toLowerCase().match(urlString);
+
+		if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
+				
+			TB_PrevCaption = "";
+			TB_PrevURL = "";
+			TB_PrevHTML = "";
+			TB_NextCaption = "";
+			TB_NextURL = "";
+			TB_NextHTML = "";
+			TB_imageCount = "";
+			TB_FoundURL = false;
+			if(imageGroup){
+				TB_TempArray = $("a[@rel="+imageGroup+"]").get();
+				for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
+					var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
+						if (!(TB_TempArray[TB_Counter].href == url)) {						
+							if (TB_FoundURL) {
+								TB_NextCaption = TB_TempArray[TB_Counter].title;
+								TB_NextURL = TB_TempArray[TB_Counter].href;
+								TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
+							} else {
+								TB_PrevCaption = TB_TempArray[TB_Counter].title;
+								TB_PrevURL = TB_TempArray[TB_Counter].href;
+								TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
+							}
+						} else {
+							TB_FoundURL = true;
+							TB_imageCount = "Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);											
+						}
+				}
+			}
+
+			imgPreloader = new Image();
+			imgPreloader.onload = function(){		
+			imgPreloader.onload = null;
+				
+			// Resizing large images - orginal by Christian Montoya edited by me.
+			var pagesize = tb_getPageSize();
+			var x = pagesize[0] - 150;
+			var y = pagesize[1] - 150;
+			var imageWidth = imgPreloader.width;
+			var imageHeight = imgPreloader.height;
+			if (imageWidth > x) {
+				imageHeight = imageHeight * (x / imageWidth); 
+				imageWidth = x; 
+				if (imageHeight > y) { 
+					imageWidth = imageWidth * (y / imageHeight); 
+					imageHeight = y; 
+				}
+			} else if (imageHeight > y) { 
+				imageWidth = imageWidth * (y / imageHeight); 
+				imageHeight = y; 
+				if (imageWidth > x) { 
+					imageHeight = imageHeight * (x / imageWidth); 
+					imageWidth = x;
+				}
+			}
+			// End Resizing
+			
+			TB_WIDTH = imageWidth + 30;
+			TB_HEIGHT = imageHeight + 60;
+			$("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a> or Esc Key</div>"); 		
+			
+			$("#TB_closeWindowButton").click(tb_remove);
+			
+			if (!(TB_PrevHTML === "")) {
+				function goPrev(){
+					if($(document).unbind("click",goPrev)){$(document).unbind("click",goPrev);}
+					$("#TB_window").remove();
+					$("body").append("<div id='TB_window'></div>");
+					tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
+					return false;	
+				}
+				$("#TB_prev").click(goPrev);
+			}
+			
+			if (!(TB_NextHTML === "")) {		
+				function goNext(){
+					$("#TB_window").remove();
+					$("body").append("<div id='TB_window'></div>");
+					tb_show(TB_NextCaption, TB_NextURL, imageGroup);				
+					return false;	
+				}
+				$("#TB_next").click(goNext);
+				
+			}
+
+			document.onkeydown = function(e){ 	
+				if (e == null) { // ie
+					keycode = event.keyCode;
+				} else { // mozilla
+					keycode = e.which;
+				}
+				if(keycode == 27){ // close
+					tb_remove();
+				} else if(keycode == 190){ // display previous image
+					if(!(TB_NextHTML == "")){
+						document.onkeydown = "";
+						goNext();
+					}
+				} else if(keycode == 188){ // display next image
+					if(!(TB_PrevHTML == "")){
+						document.onkeydown = "";
+						goPrev();
+					}
+				}	
+			};
+			
+			tb_position();
+			$("#TB_load").remove();
+			$("#TB_ImageOff").click(tb_remove);
+			$("#TB_window").css({display:"block"}); //for safari using css instead of show
+			};
+			
+			imgPreloader.src = url;
+		}else{//code to show html
+			
+			var queryString = url.replace(/^[^\?]+\??/,'');
+			var params = tb_parseQuery( queryString );
+
+			TB_WIDTH = (params['width']*1) + 30 || 630; //defaults to 630 if no paramaters were added to URL
+			TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no paramaters were added to URL
+			ajaxContentW = TB_WIDTH - 30;
+			ajaxContentH = TB_HEIGHT - 45;
+			
+			if(url.indexOf('TB_iframe') != -1){// either iframe or ajax window		
+					urlNoQuery = url.split('TB_');
+					$("#TB_iframeContent").remove();
+					if(params['modal'] != "true"){//iframe no modal
+						$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a> or Esc Key</div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' > </iframe>");
+					}else{//iframe modal
+					$("#TB_overlay").unbind();
+						$("#TB_window").append("<iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent"+Math.round(Math.random()*1000)+"' onload='tb_showIframe()' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;'> </iframe>");
+					}
+			}else{// not an iframe, ajax
+					if($("#TB_window").css("display") != "block"){
+						if(params['modal'] != "true"){//ajax no modal
+						$("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a> or Esc Key</div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
+						}else{//ajax modal
+						$("#TB_overlay").unbind();
+						$("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");	
+						}
+					}else{//this means the window is already up, we are just loading new content via ajax
+						$("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
+						$("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
+						$("#TB_ajaxContent")[0].scrollTop = 0;
+						$("#TB_ajaxWindowTitle").html(caption);
+					}
+			}
+					
+			$("#TB_closeWindowButton").click(tb_remove);
+			
+				if(url.indexOf('TB_inline') != -1){	
+					$("#TB_ajaxContent").append($('#' + params['inlineId']).children());
+					$("#TB_window").unload(function () {
+						$('#' + params['inlineId']).append( $("#TB_ajaxContent").children() ); // move elements back when you're finished
+					});
+					tb_position();
+					$("#TB_load").remove();
+					$("#TB_window").css({display:"block"}); 
+				}else if(url.indexOf('TB_iframe') != -1){
+					tb_position();
+					if($.browser.safari){//safari needs help because it will not fire iframe onload
+						$("#TB_load").remove();
+						$("#TB_window").css({display:"block"});
+					}
+				}else{
+					$("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()),function(){//to do a post change this load method
+						tb_position();
+						$("#TB_load").remove();
+						tb_init("#TB_ajaxContent a.thickbox");
+						$("#TB_window").css({display:"block"});
+					});
+				}
+			
+		}
+
+	} catch(e) {
+		//nothing here
+	}
+}
+
+//helper functions below
+function tb_showIframe(){
+	$("#TB_load").remove();
+	$("#TB_window").css({display:"block"});
+}
+
+function tb_remove() {
+ 	$("#TB_imageOff").unbind("click");
+	$("#TB_closeWindowButton").unbind("click");
+	$("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').trigger("unload").unbind().remove();});
+	$("#TB_load").remove();
+	if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
+		$("body","html").css({height: "auto", width: "auto"});
+		$("html").css("overflow","");
+	}
+	document.onkeydown = "";
+	return false;
+}
+
+function tb_position() {
+$("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
+	if ( !(jQuery.browser.msie && jQuery.browser.version < 7)) { // take away IE6
+		$("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
+	}
+}
+
+function tb_parseQuery ( query ) {
+   var Params = {};
+   if ( ! query ) {return Params;}// return empty object
+   var Pairs = query.split(/[;&]/);
+   for ( var i = 0; i < Pairs.length; i++ ) {
+      var KeyVal = Pairs[i].split('=');
+      if ( ! KeyVal || KeyVal.length != 2 ) {continue;}
+      var key = unescape( KeyVal[0] );
+      var val = unescape( KeyVal[1] );
+      val = val.replace(/\+/g, ' ');
+      Params[key] = val;
+   }
+   return Params;
+}
+
+function tb_getPageSize(){
+	var de = document.documentElement;
+	var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
+	var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
+	arrayPageSize = [w,h];
+	return arrayPageSize;
+}
+
+function tb_detectMacXFF() {
+  var userAgent = navigator.userAgent.toLowerCase();
+  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox')!=-1) {
+    return true;
+  }
+}
+
+
+
diff --git a/reviewboard/templates/admin/help.html b/reviewboard/templates/admin/help.html
--- /dev/null
+++ b/reviewboard/templates/admin/help.html
@@ -0,0 +1,50 @@
+<script type="text/javascript" src="{{MEDIA_URL}}rb/js/diff_keyboard_shortcuts.js"></script>
+<script type="text/javascript" src="{{MEDIA_URL}}rb/js/thickbox.js"></script>
+
+<script type="text/javascript">
+	$(document).ready(function() {
+		var kb_shortcuts = '' ;
+		kb_shortcuts += '<table id="kb_shortcuts">' ;
+		for (var i = 0; i < gActions.length; i++) { 
+			kb_shortcuts += '<tr>';
+			kb_shortcuts += '<td width="150">' + gActions[i].description + '</td>';
+			kb_shortcuts += '<td width="100">' +  makeDisplayKeys(gActions[i].keys) + '</td>';
+			kb_shortcuts += '</tr>';
+		}
+		$("#help").append(kb_shortcuts) ;
+
+		$(document).keyup(function(e) {
+			var KeyID = (window.event) ? event.keyCode : e.keyCode;
+			if (KeyID == 27) {
+				closeHelpScreen();
+			}
+	    });
+	});
+	
+	function displayHelpScreen() {
+	    tb_show('Keyboard Shortcuts', '#TB_inline?height=300&width=350&inlineId=help', null);
+	}
+
+	function closeHelpScreen() {
+		tb_remove();
+	}
+
+	// Converts a String from abc to a, b, c -- More readable format.
+	function makeDisplayKeys(keys){
+		var display_keys = "";
+		for(i=0;i<keys.length;i++){
+			if (i==0){
+				display_keys += ""+keys.charAt(i);
+			}else{
+				display_keys += ", "+keys.charAt(i);
+			}		
+		}
+		return display_keys;
+	}
+	
+</script>
+
+<link rel="stylesheet" href="{{MEDIA_URL}}rb/css/thickbox.css"
+	type="text/css" media="screen" />
+
+<div id="help" style="display:none;visibility:hidden;"></div>
\ No newline at end of file
diff --git a/reviewboard/templates/base.html b/reviewboard/templates/base.html
--- a/reviewboard/templates/base.html
+++ b/reviewboard/templates/base.html
@@ -15,7 +15,7 @@
     var SITE_ROOT = "{{SITE_ROOT}}";
     var LOGGED_IN = {% if request.user.is_authenticated %}true{% else %}false{% endif %};
 {% block jsconsts %}{% endblock %}
-  </script>
+</script>
   <link rel="icon" type="image/png" href="{{MEDIA_URL}}rb/images/favicon.png?{{MEDIA_SERIAL}}" />
   <link rel="stylesheet" type="text/css" href="{{MEDIA_URL}}rb/css/common.css?{{MEDIA_SERIAL}}" />
 {% block css %}{% endblock %}
diff --git a/reviewboard/templates/diffviewer/view_diff.html b/reviewboard/templates/diffviewer/view_diff.html
--- a/reviewboard/templates/diffviewer/view_diff.html
+++ b/reviewboard/templates/diffviewer/view_diff.html
@@ -33,6 +33,7 @@
 <script type="text/javascript" src="{{MEDIA_URL}}djblets/js/jquery.gravy.js?{{MEDIA_SERIAL}}"></script>
 <script type="text/javascript" src="{{MEDIA_URL}}rb/js/ui.autocomplete.min.js?{{MEDIA_SERIAL}}"></script>
 <script type="text/javascript" src="{{MEDIA_URL}}rb/js/common.js?{{MEDIA_SERIAL}}"></script>
+<script type="text/javascript" src="{{MEDIA_URL}}rb/js/diff_keyboard_shortcuts.js?{{MEDIA_SERIAL}}"></script>
 <script type="text/javascript" src="{{MEDIA_URL}}rb/js/diffviewer.js?{{MEDIA_SERIAL}}"></script>
 <script type="text/javascript" src="{{MEDIA_URL}}rb/js/reviews.js?{{MEDIA_SERIAL}}"></script>
 <script type="text/javascript" src="{{MEDIA_URL}}rb/js/jquery.form.js?{{MEDIA_SERIAL}}"></script>
@@ -240,6 +241,7 @@
 </div>
 
 {% include "reviews/comments_dlg.html" %}
+{% include "admin/help.html" %}
 
 {% endif %}{# !error #}
 {% endblock %}
