From 3b4f6e3944c382a80c1b13723c1e5e7d08ad3ecc Mon Sep 17 00:00:00 2001
From: "Mr.doob" <info@mrdoob.com>
Date: Sat, 29 Jan 2011 00:38:58 +0000
Subject: [PATCH] Changed GUI to be instanceable (rather than just one GUI per
 project). GUI.start() is now var gui = new GUI(); Included prettify.js in the
 repo so people checking the demo localy doesn't need the internets. Changed
 way of hidding the panel (controllerContainer.style.height rather than
 this.domElement.stylemarginTop).

---
 controllers/controller.js        |   76 +-
 controllers/controller.number.js |    4 +-
 demo/prettify.js                 | 1538 ++++++++++++++++++++++++++++++
 gui.js                           |  197 ++--
 index.html                       |  105 +-
 5 files changed, 1716 insertions(+), 204 deletions(-)
 create mode 100644 demo/prettify.js

diff --git a/controllers/controller.js b/controllers/controller.js
index 467ea51..ad90e73 100644
--- a/controllers/controller.js
+++ b/controllers/controller.js
@@ -2,53 +2,55 @@ var Controller = function() {
 
 	var onChange = null;
 
-    this.setName = function(n) {
-  	    this.propertyNameElement.innerHTML = n;
-  	    return this;
-    }
-    
-    this.setValue = function(n) {
-    	this.object[this.propertyName] = n;
-      	if (onChange != null) {
-      		onChange.call(this, n);
-      	}
-      	return this;
-    }
-    
-    this.getValue = function() {
-        return this.object[this.propertyName];
-    }
-    
-    this.onChange = function(fnc) {
-    	onChange = fnc;
-    	return this;
-    }
-    
+	this.parent = null;
+
+	this.setName = function(n) {
+	    this.propertyNameElement.innerHTML = n;
+	    return this;
+	}
+
+	this.setValue = function(n) {
+		this.object[this.propertyName] = n;
+		if (onChange != null) {
+			onChange.call(this, n);
+		}
+		return this;
+	}
+
+	this.getValue = function() {
+		return this.object[this.propertyName];
+	}
+
+	this.onChange = function(fnc) {
+		onChange = fnc;
+		return this;
+	}
+
 	this.makeUnselectable = function(elem) {
 		elem.onselectstart = function() { return false; };
 		elem.style.MozUserSelect = "none";
 		elem.style.KhtmlUserSelect = "none";
 		elem.unselectable = "on";
 	}
-    
+
 	this.makeSelectable = function(elem) {
 		elem.onselectstart = function() { };
 		elem.style.MozUserSelect = "auto";
 		elem.style.KhtmlUserSelect = "auto";
 		elem.unselectable = "off";
 	}
-    
-    this.domElement = document.createElement('div');
-    this.domElement.setAttribute('class', 'guidat-controller ' + this.type);
 
-    this.object = arguments[0];
-    this.propertyName = arguments[1];
-    
-    this.propertyNameElement = document.createElement('span');
-    this.propertyNameElement.setAttribute('class', 'guidat-propertyname');
-    this.setName(this.propertyName);
-    this.domElement.appendChild(this.propertyNameElement);
-    
-    this.makeUnselectable(this.domElement);
-    
-};
\ No newline at end of file
+	this.domElement = document.createElement('div');
+	this.domElement.setAttribute('class', 'guidat-controller ' + this.type);
+
+	this.object = arguments[0];
+	this.propertyName = arguments[1];
+
+	this.propertyNameElement = document.createElement('span');
+	this.propertyNameElement.setAttribute('class', 'guidat-propertyname');
+	this.setName(this.propertyName);
+	this.domElement.appendChild(this.propertyNameElement);
+
+	this.makeUnselectable(this.domElement);
+
+};
diff --git a/controllers/controller.number.js b/controllers/controller.number.js
index b6cef94..80d299b 100644
--- a/controllers/controller.number.js
+++ b/controllers/controller.number.js
@@ -70,7 +70,7 @@ var NumberController = function() {
     
     document.addEventListener('mouseup', function(e) {
         document.removeEventListener('mousemove', dragNumberField, false);
-        _this.makeSelectable(GUI.domElement); 
+        _this.makeSelectable(_this.parent.domElement); 
         _this.makeSelectable(numberField);
         if (clickedNumberField && !draggedNumberField) { 
 	        numberField.focus();
@@ -129,4 +129,4 @@ var NumberController = function() {
 };
 
 NumberController.prototype = new Controller();
-NumberController.prototype.constructor = NumberController;
\ No newline at end of file
+NumberController.prototype.constructor = NumberController;
diff --git a/demo/prettify.js b/demo/prettify.js
new file mode 100644
index 0000000..bb76f07
--- /dev/null
+++ b/demo/prettify.js
@@ -0,0 +1,1538 @@
+// Copyright (C) 2006 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+/**
+ * @fileoverview
+ * some functions for browser-side pretty printing of code contained in html.
+ * <p>
+ *
+ * For a fairly comprehensive set of languages see the
+ * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a>
+ * file that came with this source.  At a minimum, the lexer should work on a
+ * number of languages including C and friends, Java, Python, Bash, SQL, HTML,
+ * XML, CSS, Javascript, and Makefiles.  It works passably on Ruby, PHP and Awk
+ * and a subset of Perl, but, because of commenting conventions, doesn't work on
+ * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class.
+ * <p>
+ * Usage: <ol>
+ * <li> include this source file in an html page via
+ *   {@code <script type="text/javascript" src="/path/to/prettify.js"></script>}
+ * <li> define style rules.  See the example page for examples.
+ * <li> mark the {@code <pre>} and {@code <code>} tags in your source with
+ *    {@code class=prettyprint.}
+ *    You can also use the (html deprecated) {@code <xmp>} tag, but the pretty
+ *    printer needs to do more substantial DOM manipulations to support that, so
+ *    some css styles may not be preserved.
+ * </ol>
+ * That's it.  I wanted to keep the API as simple as possible, so there's no
+ * need to specify which language the code is in, but if you wish, you can add
+ * another class to the {@code <pre>} or {@code <code>} element to specify the
+ * language, as in {@code <pre class="prettyprint lang-java">}.  Any class that
+ * starts with "lang-" followed by a file extension, specifies the file type.
+ * See the "lang-*.js" files in this directory for code that implements
+ * per-language file handlers.
+ * <p>
+ * Change log:<br>
+ * cbeust, 2006/08/22
+ * <blockquote>
+ *   Java annotations (start with "@") are now captured as literals ("lit")
+ * </blockquote>
+ * @requires console
+ */
+
+// JSLint declarations
+/*global console, document, navigator, setTimeout, window */
+
+/**
+ * Split {@code prettyPrint} into multiple timeouts so as not to interfere with
+ * UI events.
+ * If set to {@code false}, {@code prettyPrint()} is synchronous.
+ */
+window['PR_SHOULD_USE_CONTINUATION'] = true;
+
+/** the number of characters between tab columns */
+window['PR_TAB_WIDTH'] = 8;
+
+/** Walks the DOM returning a properly escaped version of innerHTML.
+  * @param {Node} node
+  * @param {Array.<string>} out output buffer that receives chunks of HTML.
+  */
+window['PR_normalizedHtml']
+
+/** Contains functions for creating and registering new language handlers.
+  * @type {Object}
+  */
+  = window['PR']
+
+/** Pretty print a chunk of code.
+  *
+  * @param {string} sourceCodeHtml code as html
+  * @return {string} code as html, but prettier
+  */
+  = window['prettyPrintOne']
+/** Find all the {@code <pre>} and {@code <code>} tags in the DOM with
+  * {@code class=prettyprint} and prettify them.
+  * @param {Function?} opt_whenDone if specified, called when the last entry
+  *     has been finished.
+  */
+  = window['prettyPrint'] = void 0;
+
+/** browser detection. @extern @returns false if not IE, otherwise the major version. */
+window['_pr_isIE6'] = function () {
+  var ieVersion = navigator && navigator.userAgent &&
+      navigator.userAgent.match(/\bMSIE ([678])\./);
+  ieVersion = ieVersion ? +ieVersion[1] : false;
+  window['_pr_isIE6'] = function () { return ieVersion; };
+  return ieVersion;
+};
+
+
+(function () {
+  // Keyword lists for various languages.
+  var FLOW_CONTROL_KEYWORDS =
+      "break continue do else for if return while ";
+  var C_KEYWORDS = FLOW_CONTROL_KEYWORDS + "auto case char const default " +
+      "double enum extern float goto int long register short signed sizeof " +
+      "static struct switch typedef union unsigned void volatile ";
+  var COMMON_KEYWORDS = C_KEYWORDS + "catch class delete false import " +
+      "new operator private protected public this throw true try typeof ";
+  var CPP_KEYWORDS = COMMON_KEYWORDS + "alignof align_union asm axiom bool " +
+      "concept concept_map const_cast constexpr decltype " +
+      "dynamic_cast explicit export friend inline late_check " +
+      "mutable namespace nullptr reinterpret_cast static_assert static_cast " +
+      "template typeid typename using virtual wchar_t where ";
+  var JAVA_KEYWORDS = COMMON_KEYWORDS +
+      "abstract boolean byte extends final finally implements import " +
+      "instanceof null native package strictfp super synchronized throws " +
+      "transient ";
+  var CSHARP_KEYWORDS = JAVA_KEYWORDS +
+      "as base by checked decimal delegate descending dynamic event " +
+      "fixed foreach from group implicit in interface internal into is lock " +
+      "object out override orderby params partial readonly ref sbyte sealed " +
+      "stackalloc string select uint ulong unchecked unsafe ushort var ";
+  var COFFEE_KEYWORDS = "all and by catch class else extends false finally " +
+      "for if in is isnt loop new no not null of off on or return super then " +
+      "true try unless until when while yes ";
+  var JSCRIPT_KEYWORDS = COMMON_KEYWORDS +
+      "debugger eval export function get null set undefined var with " +
+      "Infinity NaN ";
+  var PERL_KEYWORDS = "caller delete die do dump elsif eval exit foreach for " +
+      "goto if import last local my next no our print package redo require " +
+      "sub undef unless until use wantarray while BEGIN END ";
+  var PYTHON_KEYWORDS = FLOW_CONTROL_KEYWORDS + "and as assert class def del " +
+      "elif except exec finally from global import in is lambda " +
+      "nonlocal not or pass print raise try with yield " +
+      "False True None ";
+  var RUBY_KEYWORDS = FLOW_CONTROL_KEYWORDS + "alias and begin case class def" +
+      " defined elsif end ensure false in module next nil not or redo rescue " +
+      "retry self super then true undef unless until when yield BEGIN END ";
+  var SH_KEYWORDS = FLOW_CONTROL_KEYWORDS + "case done elif esac eval fi " +
+      "function in local set then until ";
+  var ALL_KEYWORDS = (
+      CPP_KEYWORDS + CSHARP_KEYWORDS + JSCRIPT_KEYWORDS + PERL_KEYWORDS +
+      PYTHON_KEYWORDS + RUBY_KEYWORDS + SH_KEYWORDS);
+
+  // token style names.  correspond to css classes
+  /** token style for a string literal */
+  var PR_STRING = 'str';
+  /** token style for a keyword */
+  var PR_KEYWORD = 'kwd';
+  /** token style for a comment */
+  var PR_COMMENT = 'com';
+  /** token style for a type */
+  var PR_TYPE = 'typ';
+  /** token style for a literal value.  e.g. 1, null, true. */
+  var PR_LITERAL = 'lit';
+  /** token style for a punctuation string. */
+  var PR_PUNCTUATION = 'pun';
+  /** token style for a punctuation string. */
+  var PR_PLAIN = 'pln';
+
+  /** token style for an sgml tag. */
+  var PR_TAG = 'tag';
+  /** token style for a markup declaration such as a DOCTYPE. */
+  var PR_DECLARATION = 'dec';
+  /** token style for embedded source. */
+  var PR_SOURCE = 'src';
+  /** token style for an sgml attribute name. */
+  var PR_ATTRIB_NAME = 'atn';
+  /** token style for an sgml attribute value. */
+  var PR_ATTRIB_VALUE = 'atv';
+
+  /**
+   * A class that indicates a section of markup that is not code, e.g. to allow
+   * embedding of line numbers within code listings.
+   */
+  var PR_NOCODE = 'nocode';
+
+  /** A set of tokens that can precede a regular expression literal in
+    * javascript.
+    * http://www.mozilla.org/js/language/js20/rationale/syntax.html has the full
+    * list, but I've removed ones that might be problematic when seen in
+    * languages that don't support regular expression literals.
+    *
+    * <p>Specifically, I've removed any keywords that can't precede a regexp
+    * literal in a syntactically legal javascript program, and I've removed the
+    * "in" keyword since it's not a keyword in many languages, and might be used
+    * as a count of inches.
+    *
+    * <p>The link a above does not accurately describe EcmaScript rules since
+    * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works
+    * very well in practice.
+    *
+    * @private
+    */
+  var REGEXP_PRECEDER_PATTERN = function () {
+      var preceders = [
+          "!", "!=", "!==", "#", "%", "%=", "&", "&&", "&&=",
+          "&=", "(", "*", "*=", /* "+", */ "+=", ",", /* "-", */ "-=",
+          "->", /*".", "..", "...", handled below */ "/", "/=", ":", "::", ";",
+          "<", "<<", "<<=", "<=", "=", "==", "===", ">",
+          ">=", ">>", ">>=", ">>>", ">>>=", "?", "@", "[",
+          "^", "^=", "^^", "^^=", "{", "|", "|=", "||",
+          "||=", "~" /* handles =~ and !~ */,
+          "break", "case", "continue", "delete",
+          "do", "else", "finally", "instanceof",
+          "return", "throw", "try", "typeof"
+          ];
+      var pattern = '(?:^^|[+-]';
+      for (var i = 0; i < preceders.length; ++i) {
+        pattern += '|' + preceders[i].replace(/([^=<>:&a-z])/g, '\\$1');
+      }
+      pattern += ')\\s*';  // matches at end, and matches empty string
+      return pattern;
+      // CAVEAT: this does not properly handle the case where a regular
+      // expression immediately follows another since a regular expression may
+      // have flags for case-sensitivity and the like.  Having regexp tokens
+      // adjacent is not valid in any language I'm aware of, so I'm punting.
+      // TODO: maybe style special characters inside a regexp as punctuation.
+    }();
+
+  // Define regexps here so that the interpreter doesn't have to create an
+  // object each time the function containing them is called.
+  // The language spec requires a new object created even if you don't access
+  // the $1 members.
+  var pr_amp = /&/g;
+  var pr_lt = /</g;
+  var pr_gt = />/g;
+  var pr_quot = /\"/g;
+  /** like textToHtml but escapes double quotes to be attribute safe. */
+  function attribToHtml(str) {
+    return str.replace(pr_amp, '&amp;')
+        .replace(pr_lt, '&lt;')
+        .replace(pr_gt, '&gt;')
+        .replace(pr_quot, '&quot;');
+  }
+
+  /** escapest html special characters to html. */
+  function textToHtml(str) {
+    return str.replace(pr_amp, '&amp;')
+        .replace(pr_lt, '&lt;')
+        .replace(pr_gt, '&gt;');
+  }
+
+
+  var pr_ltEnt = /&lt;/g;
+  var pr_gtEnt = /&gt;/g;
+  var pr_aposEnt = /&apos;/g;
+  var pr_quotEnt = /&quot;/g;
+  var pr_ampEnt = /&amp;/g;
+  var pr_nbspEnt = /&nbsp;/g;
+  /** unescapes html to plain text. */
+  function htmlToText(html) {
+    var pos = html.indexOf('&');
+    if (pos < 0) { return html; }
+    // Handle numeric entities specially.  We can't use functional substitution
+    // since that doesn't work in older versions of Safari.
+    // These should be rare since most browsers convert them to normal chars.
+    for (--pos; (pos = html.indexOf('&#', pos + 1)) >= 0;) {
+      var end = html.indexOf(';', pos);
+      if (end >= 0) {
+        var num = html.substring(pos + 3, end);
+        var radix = 10;
+        if (num && num.charAt(0) === 'x') {
+          num = num.substring(1);
+          radix = 16;
+        }
+        var codePoint = parseInt(num, radix);
+        if (!isNaN(codePoint)) {
+          html = (html.substring(0, pos) + String.fromCharCode(codePoint) +
+                  html.substring(end + 1));
+        }
+      }
+    }
+
+    return html.replace(pr_ltEnt, '<')
+        .replace(pr_gtEnt, '>')
+        .replace(pr_aposEnt, "'")
+        .replace(pr_quotEnt, '"')
+        .replace(pr_nbspEnt, ' ')
+        .replace(pr_ampEnt, '&');
+  }
+
+  /** is the given node's innerHTML normally unescaped? */
+  function isRawContent(node) {
+    return 'XMP' === node.tagName;
+  }
+
+  var newlineRe = /[\r\n]/g;
+  /**
+   * Are newlines and adjacent spaces significant in the given node's innerHTML?
+   */
+  function isPreformatted(node, content) {
+    // PRE means preformatted, and is a very common case, so don't create
+    // unnecessary computed style objects.
+    if ('PRE' === node.tagName) { return true; }
+    if (!newlineRe.test(content)) { return true; }  // Don't care
+    var whitespace = '';
+    // For disconnected nodes, IE has no currentStyle.
+    if (node.currentStyle) {
+      whitespace = node.currentStyle.whiteSpace;
+    } else if (window.getComputedStyle) {
+      // Firefox makes a best guess if node is disconnected whereas Safari
+      // returns the empty string.
+      whitespace = window.getComputedStyle(node, null).whiteSpace;
+    }
+    return !whitespace || whitespace === 'pre';
+  }
+
+  function normalizedHtml(node, out, opt_sortAttrs) {
+    switch (node.nodeType) {
+      case 1:  // an element
+        var name = node.tagName.toLowerCase();
+
+        out.push('<', name);
+        var attrs = node.attributes;
+        var n = attrs.length;
+        if (n) {
+          if (opt_sortAttrs) {
+            var sortedAttrs = [];
+            for (var i = n; --i >= 0;) { sortedAttrs[i] = attrs[i]; }
+            sortedAttrs.sort(function (a, b) {
+                return (a.name < b.name) ? -1 : a.name === b.name ? 0 : 1;
+              });
+            attrs = sortedAttrs;
+          }
+          for (var i = 0; i < n; ++i) {
+            var attr = attrs[i];
+            if (!attr.specified) { continue; }
+            out.push(' ', attr.name.toLowerCase(),
+                     '="', attribToHtml(attr.value), '"');
+          }
+        }
+        out.push('>');
+        for (var child = node.firstChild; child; child = child.nextSibling) {
+          normalizedHtml(child, out, opt_sortAttrs);
+        }
+        if (node.firstChild || !/^(?:br|link|img)$/.test(name)) {
+          out.push('<\/', name, '>');
+        }
+        break;
+      case 3: case 4: // text
+        out.push(textToHtml(node.nodeValue));
+        break;
+    }
+  }
+
+  /**
+   * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally
+   * matches the union o the sets o strings matched d by the input RegExp.
+   * Since it matches globally, if the input strings have a start-of-input
+   * anchor (/^.../), it is ignored for the purposes of unioning.
+   * @param {Array.<RegExp>} regexs non multiline, non-global regexs.
+   * @return {RegExp} a global regex.
+   */
+  function combinePrefixPatterns(regexs) {
+    var capturedGroupIndex = 0;
+
+    var needToFoldCase = false;
+    var ignoreCase = false;
+    for (var i = 0, n = regexs.length; i < n; ++i) {
+      var regex = regexs[i];
+      if (regex.ignoreCase) {
+        ignoreCase = true;
+      } else if (/[a-z]/i.test(regex.source.replace(
+                     /\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) {
+        needToFoldCase = true;
+        ignoreCase = false;
+        break;
+      }
+    }
+
+    function decodeEscape(charsetPart) {
+      if (charsetPart.charAt(0) !== '\\') { return charsetPart.charCodeAt(0); }
+      switch (charsetPart.charAt(1)) {
+        case 'b': return 8;
+        case 't': return 9;
+        case 'n': return 0xa;
+        case 'v': return 0xb;
+        case 'f': return 0xc;
+        case 'r': return 0xd;
+        case 'u': case 'x':
+          return parseInt(charsetPart.substring(2), 16)
+              || charsetPart.charCodeAt(1);
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7':
+          return parseInt(charsetPart.substring(1), 8);
+        default: return charsetPart.charCodeAt(1);
+      }
+    }
+
+    function encodeEscape(charCode) {
+      if (charCode < 0x20) {
+        return (charCode < 0x10 ? '\\x0' : '\\x') + charCode.toString(16);
+      }
+      var ch = String.fromCharCode(charCode);
+      if (ch === '\\' || ch === '-' || ch === '[' || ch === ']') {
+        ch = '\\' + ch;
+      }
+      return ch;
+    }
+
+    function caseFoldCharset(charSet) {
+      var charsetParts = charSet.substring(1, charSet.length - 1).match(
+          new RegExp(
+              '\\\\u[0-9A-Fa-f]{4}'
+              + '|\\\\x[0-9A-Fa-f]{2}'
+              + '|\\\\[0-3][0-7]{0,2}'
+              + '|\\\\[0-7]{1,2}'
+              + '|\\\\[\\s\\S]'
+              + '|-'
+              + '|[^-\\\\]',
+              'g'));
+      var groups = [];
+      var ranges = [];
+      var inverse = charsetParts[0] === '^';
+      for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) {
+        var p = charsetParts[i];
+        switch (p) {
+          case '\\B': case '\\b':
+          case '\\D': case '\\d':
+          case '\\S': case '\\s':
+          case '\\W': case '\\w':
+            groups.push(p);
+            continue;
+        }
+        var start = decodeEscape(p);
+        var end;
+        if (i + 2 < n && '-' === charsetParts[i + 1]) {
+          end = decodeEscape(charsetParts[i + 2]);
+          i += 2;
+        } else {
+          end = start;
+        }
+        ranges.push([start, end]);
+        // If the range might intersect letters, then expand it.
+        if (!(end < 65 || start > 122)) {
+          if (!(end < 65 || start > 90)) {
+            ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
+          }
+          if (!(end < 97 || start > 122)) {
+            ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
+          }
+        }
+      }
+
+      // [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]]
+      // -> [[1, 12], [14, 14], [16, 17]]
+      ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1]  - a[1]); });
+      var consolidatedRanges = [];
+      var lastRange = [NaN, NaN];
+      for (var i = 0; i < ranges.length; ++i) {
+        var range = ranges[i];
+        if (range[0] <= lastRange[1] + 1) {
+          lastRange[1] = Math.max(lastRange[1], range[1]);
+        } else {
+          consolidatedRanges.push(lastRange = range);
+        }
+      }
+
+      var out = ['['];
+      if (inverse) { out.push('^'); }
+      out.push.apply(out, groups);
+      for (var i = 0; i < consolidatedRanges.length; ++i) {
+        var range = consolidatedRanges[i];
+        out.push(encodeEscape(range[0]));
+        if (range[1] > range[0]) {
+          if (range[1] + 1 > range[0]) { out.push('-'); }
+          out.push(encodeEscape(range[1]));
+        }
+      }
+      out.push(']');
+      return out.join('');
+    }
+
+    function allowAnywhereFoldCaseAndRenumberGroups(regex) {
+      // Split into character sets, escape sequences, punctuation strings
+      // like ('(', '(?:', ')', '^'), and runs of characters that do not
+      // include any of the above.
+      var parts = regex.source.match(
+          new RegExp(
+              '(?:'
+              + '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]'  // a character set
+              + '|\\\\u[A-Fa-f0-9]{4}'  // a unicode escape
+              + '|\\\\x[A-Fa-f0-9]{2}'  // a hex escape
+              + '|\\\\[0-9]+'  // a back-reference or octal escape
+              + '|\\\\[^ux0-9]'  // other escape sequence
+              + '|\\(\\?[:!=]'  // start of a non-capturing group
+              + '|[\\(\\)\\^]'  // start/emd of a group, or line start
+              + '|[^\\x5B\\x5C\\(\\)\\^]+'  // run of other characters
+              + ')',
+              'g'));
+      var n = parts.length;
+
+      // Maps captured group numbers to the number they will occupy in
+      // the output or to -1 if that has not been determined, or to
+      // undefined if they need not be capturing in the output.
+      var capturedGroups = [];
+
+      // Walk over and identify back references to build the capturedGroups
+      // mapping.
+      for (var i = 0, groupIndex = 0; i < n; ++i) {
+        var p = parts[i];
+        if (p === '(') {
+          // groups are 1-indexed, so max group index is count of '('
+          ++groupIndex;
+        } else if ('\\' === p.charAt(0)) {
+          var decimalValue = +p.substring(1);
+          if (decimalValue && decimalValue <= groupIndex) {
+            capturedGroups[decimalValue] = -1;
+          }
+        }
+      }
+
+      // Renumber groups and reduce capturing groups to non-capturing groups
+      // where possible.
+      for (var i = 1; i < capturedGroups.length; ++i) {
+        if (-1 === capturedGroups[i]) {
+          capturedGroups[i] = ++capturedGroupIndex;
+        }
+      }
+      for (var i = 0, groupIndex = 0; i < n; ++i) {
+        var p = parts[i];
+        if (p === '(') {
+          ++groupIndex;
+          if (capturedGroups[groupIndex] === undefined) {
+            parts[i] = '(?:';
+          }
+        } else if ('\\' === p.charAt(0)) {
+          var decimalValue = +p.substring(1);
+          if (decimalValue && decimalValue <= groupIndex) {
+            parts[i] = '\\' + capturedGroups[groupIndex];
+          }
+        }
+      }
+
+      // Remove any prefix anchors so that the output will match anywhere.
+      // ^^ really does mean an anchored match though.
+      for (var i = 0, groupIndex = 0; i < n; ++i) {
+        if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
+      }
+
+      // Expand letters to groupts to handle mixing of case-sensitive and
+      // case-insensitive patterns if necessary.
+      if (regex.ignoreCase && needToFoldCase) {
+        for (var i = 0; i < n; ++i) {
+          var p = parts[i];
+          var ch0 = p.charAt(0);
+          if (p.length >= 2 && ch0 === '[') {
+            parts[i] = caseFoldCharset(p);
+          } else if (ch0 !== '\\') {
+            // TODO: handle letters in numeric escapes.
+            parts[i] = p.replace(
+                /[a-zA-Z]/g,
+                function (ch) {
+                  var cc = ch.charCodeAt(0);
+                  return '[' + String.fromCharCode(cc & ~32, cc | 32) + ']';
+                });
+          }
+        }
+      }
+
+      return parts.join('');
+    }
+
+    var rewritten = [];
+    for (var i = 0, n = regexs.length; i < n; ++i) {
+      var regex = regexs[i];
+      if (regex.global || regex.multiline) { throw new Error('' + regex); }
+      rewritten.push(
+          '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')');
+    }
+
+    return new RegExp(rewritten.join('|'), ignoreCase ? 'gi' : 'g');
+  }
+
+  var PR_innerHtmlWorks = null;
+  function getInnerHtml(node) {
+    // inner html is hopelessly broken in Safari 2.0.4 when the content is
+    // an html description of well formed XML and the containing tag is a PRE
+    // tag, so we detect that case and emulate innerHTML.
+    if (null === PR_innerHtmlWorks) {
+      var testNode = document.createElement('PRE');
+      testNode.appendChild(
+          document.createTextNode('<!DOCTYPE foo PUBLIC "foo bar">\n<foo />'));
+      PR_innerHtmlWorks = !/</.test(testNode.innerHTML);
+    }
+
+    if (PR_innerHtmlWorks) {
+      var content = node.innerHTML;
+      // XMP tags contain unescaped entities so require special handling.
+      if (isRawContent(node)) {
+        content = textToHtml(content);
+      } else if (!isPreformatted(node, content)) {
+        content = content.replace(/(<br\s*\/?>)[\r\n]+/g, '$1')
+            .replace(/(?:[\r\n]+[ \t]*)+/g, ' ');
+      }
+      return content;
+    }
+
+    var out = [];
+    for (var child = node.firstChild; child; child = child.nextSibling) {
+      normalizedHtml(child, out);
+    }
+    return out.join('');
+  }
+
+  /** returns a function that expand tabs to spaces.  This function can be fed
+    * successive chunks of text, and will maintain its own internal state to
+    * keep track of how tabs are expanded.
+    * @return {function (string) : string} a function that takes
+    *   plain text and return the text with tabs expanded.
+    * @private
+    */
+  function makeTabExpander(tabWidth) {
+    var SPACES = '                ';
+    var charInLine = 0;
+
+    return function (plainText) {
+      // walk over each character looking for tabs and newlines.
+      // On tabs, expand them.  On newlines, reset charInLine.
+      // Otherwise increment charInLine
+      var out = null;
+      var pos = 0;
+      for (var i = 0, n = plainText.length; i < n; ++i) {
+        var ch = plainText.charAt(i);
+
+        switch (ch) {
+          case '\t':
+            if (!out) { out = []; }
+            out.push(plainText.substring(pos, i));
+            // calculate how much space we need in front of this part
+            // nSpaces is the amount of padding -- the number of spaces needed
+            // to move us to the next column, where columns occur at factors of
+            // tabWidth.
+            var nSpaces = tabWidth - (charInLine % tabWidth);
+            charInLine += nSpaces;
+            for (; nSpaces >= 0; nSpaces -= SPACES.length) {
+              out.push(SPACES.substring(0, nSpaces));
+            }
+            pos = i + 1;
+            break;
+          case '\n':
+            charInLine = 0;
+            break;
+          default:
+            ++charInLine;
+        }
+      }
+      if (!out) { return plainText; }
+      out.push(plainText.substring(pos));
+      return out.join('');
+    };
+  }
+
+  var pr_chunkPattern = new RegExp(
+      '[^<]+'  // A run of characters other than '<'
+      + '|<\!--[\\s\\S]*?--\>'  // an HTML comment
+      + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>'  // a CDATA section
+      // a probable tag that should not be highlighted
+      + '|<\/?[a-zA-Z](?:[^>\"\']|\'[^\']*\'|\"[^\"]*\")*>'
+      + '|<',  // A '<' that does not begin a larger chunk
+      'g');
+  var pr_commentPrefix = /^<\!--/;
+  var pr_cdataPrefix = /^<!\[CDATA\[/;
+  var pr_brPrefix = /^<br\b/i;
+  var pr_tagNameRe = /^<(\/?)([a-zA-Z][a-zA-Z0-9]*)/;
+
+  /** split markup into chunks of html tags (style null) and
+    * plain text (style {@link #PR_PLAIN}), converting tags which are
+    * significant for tokenization (<br>) into their textual equivalent.
+    *
+    * @param {string} s html where whitespace is considered significant.
+    * @return {Object} source code and extracted tags.
+    * @private
+    */
+  function extractTags(s) {
+    // since the pattern has the 'g' modifier and defines no capturing groups,
+    // this will return a list of all chunks which we then classify and wrap as
+    // PR_Tokens
+    var matches = s.match(pr_chunkPattern);
+    var sourceBuf = [];
+    var sourceBufLen = 0;
+    var extractedTags = [];
+    if (matches) {
+      for (var i = 0, n = matches.length; i < n; ++i) {
+        var match = matches[i];
+        if (match.length > 1 && match.charAt(0) === '<') {
+          if (pr_commentPrefix.test(match)) { continue; }
+          if (pr_cdataPrefix.test(match)) {
+            // strip CDATA prefix and suffix.  Don't unescape since it's CDATA
+            sourceBuf.push(match.substring(9, match.length - 3));
+            sourceBufLen += match.length - 12;
+          } else if (pr_brPrefix.test(match)) {
+            // <br> tags are lexically significant so convert them to text.
+            // This is undone later.
+            sourceBuf.push('\n');
+            ++sourceBufLen;
+          } else {
+            if (match.indexOf(PR_NOCODE) >= 0 && isNoCodeTag(match)) {
+              // A <span class="nocode"> will start a section that should be
+              // ignored.  Continue walking the list until we see a matching end
+              // tag.
+              var name = match.match(pr_tagNameRe)[2];
+              var depth = 1;
+              var j;
+              end_tag_loop:
+              for (j = i + 1; j < n; ++j) {
+                var name2 = matches[j].match(pr_tagNameRe);
+                if (name2 && name2[2] === name) {
+                  if (name2[1] === '/') {
+                    if (--depth === 0) { break end_tag_loop; }
+                  } else {
+                    ++depth;
+                  }
+                }
+              }
+              if (j < n) {
+                extractedTags.push(
+                    sourceBufLen, matches.slice(i, j + 1).join(''));
+                i = j;
+              } else {  // Ignore unclosed sections.
+                extractedTags.push(sourceBufLen, match);
+              }
+            } else {
+              extractedTags.push(sourceBufLen, match);
+            }
+          }
+        } else {
+          var literalText = htmlToText(match);
+          sourceBuf.push(literalText);
+          sourceBufLen += literalText.length;
+        }
+      }
+    }
+    return { source: sourceBuf.join(''), tags: extractedTags };
+  }
+
+  /** True if the given tag contains a class attribute with the nocode class. */
+  function isNoCodeTag(tag) {
+    return !!tag
+        // First canonicalize the representation of attributes
+        .replace(/\s(\w+)\s*=\s*(?:\"([^\"]*)\"|'([^\']*)'|(\S+))/g,
+                 ' $1="$2$3$4"')
+        // Then look for the attribute we want.
+        .match(/[cC][lL][aA][sS][sS]=\"[^\"]*\bnocode\b/);
+  }
+
+  /**
+   * Apply the given language handler to sourceCode and add the resulting
+   * decorations to out.
+   * @param {number} basePos the index of sourceCode within the chunk of source
+   *    whose decorations are already present on out.
+   */
+  function appendDecorations(basePos, sourceCode, langHandler, out) {
+    if (!sourceCode) { return; }
+    var job = {
+      source: sourceCode,
+      basePos: basePos
+    };
+    langHandler(job);
+    out.push.apply(out, job.decorations);
+  }
+
+  /** Given triples of [style, pattern, context] returns a lexing function,
+    * The lexing function interprets the patterns to find token boundaries and
+    * returns a decoration list of the form
+    * [index_0, style_0, index_1, style_1, ..., index_n, style_n]
+    * where index_n is an index into the sourceCode, and style_n is a style
+    * constant like PR_PLAIN.  index_n-1 <= index_n, and style_n-1 applies to
+    * all characters in sourceCode[index_n-1:index_n].
+    *
+    * The stylePatterns is a list whose elements have the form
+    * [style : string, pattern : RegExp, DEPRECATED, shortcut : string].
+    *
+    * Style is a style constant like PR_PLAIN, or can be a string of the
+    * form 'lang-FOO', where FOO is a language extension describing the
+    * language of the portion of the token in $1 after pattern executes.
+    * E.g., if style is 'lang-lisp', and group 1 contains the text
+    * '(hello (world))', then that portion of the token will be passed to the
+    * registered lisp handler for formatting.
+    * The text before and after group 1 will be restyled using this decorator
+    * so decorators should take care that this doesn't result in infinite
+    * recursion.  For example, the HTML lexer rule for SCRIPT elements looks
+    * something like ['lang-js', /<[s]cript>(.+?)<\/script>/].  This may match
+    * '<script>foo()<\/script>', which would cause the current decorator to
+    * be called with '<script>' which would not match the same rule since
+    * group 1 must not be empty, so it would be instead styled as PR_TAG by
+    * the generic tag rule.  The handler registered for the 'js' extension would
+    * then be called with 'foo()', and finally, the current decorator would
+    * be called with '<\/script>' which would not match the original rule and
+    * so the generic tag rule would identify it as a tag.
+    *
+    * Pattern must only match prefixes, and if it matches a prefix, then that
+    * match is considered a token with the same style.
+    *
+    * Context is applied to the last non-whitespace, non-comment token
+    * recognized.
+    *
+    * Shortcut is an optional string of characters, any of which, if the first
+    * character, gurantee that this pattern and only this pattern matches.
+    *
+    * @param {Array} shortcutStylePatterns patterns that always start with
+    *   a known character.  Must have a shortcut string.
+    * @param {Array} fallthroughStylePatterns patterns that will be tried in
+    *   order if the shortcut ones fail.  May have shortcuts.
+    *
+    * @return {function (Object)} a
+    *   function that takes source code and returns a list of decorations.
+    */
+  function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) {
+    var shortcuts = {};
+    var tokenizer;
+    (function () {
+      var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns);
+      var allRegexs = [];
+      var regexKeys = {};
+      for (var i = 0, n = allPatterns.length; i < n; ++i) {
+        var patternParts = allPatterns[i];
+        var shortcutChars = patternParts[3];
+        if (shortcutChars) {
+          for (var c = shortcutChars.length; --c >= 0;) {
+            shortcuts[shortcutChars.charAt(c)] = patternParts;
+          }
+        }
+        var regex = patternParts[1];
+        var k = '' + regex;
+        if (!regexKeys.hasOwnProperty(k)) {
+          allRegexs.push(regex);
+          regexKeys[k] = null;
+        }
+      }
+      allRegexs.push(/[\0-\uffff]/);
+      tokenizer = combinePrefixPatterns(allRegexs);
+    })();
+
+    var nPatterns = fallthroughStylePatterns.length;
+    var notWs = /\S/;
+
+    /**
+     * Lexes job.source and produces an output array job.decorations of style
+     * classes preceded by the position at which they start in job.source in
+     * order.
+     *
+     * @param {Object} job an object like {@code
+     *    source: {string} sourceText plain text,
+     *    basePos: {int} position of job.source in the larger chunk of
+     *        sourceCode.
+     * }
+     */
+    var decorate = function (job) {
+      var sourceCode = job.source, basePos = job.basePos;
+      /** Even entries are positions in source in ascending order.  Odd enties
+        * are style markers (e.g., PR_COMMENT) that run from that position until
+        * the end.
+        * @type {Array.<number|string>}
+        */
+      var decorations = [basePos, PR_PLAIN];
+      var pos = 0;  // index into sourceCode
+      var tokens = sourceCode.match(tokenizer) || [];
+      var styleCache = {};
+
+      for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) {
+        var token = tokens[ti];
+        var style = styleCache[token];
+        var match = void 0;
+
+        var isEmbedded;
+        if (typeof style === 'string') {
+          isEmbedded = false;
+        } else {
+          var patternParts = shortcuts[token.charAt(0)];
+          if (patternParts) {
+            match = token.match(patternParts[1]);
+            style = patternParts[0];
+          } else {
+            for (var i = 0; i < nPatterns; ++i) {
+              patternParts = fallthroughStylePatterns[i];
+              match = token.match(patternParts[1]);
+              if (match) {
+                style = patternParts[0];
+                break;
+              }
+            }
+
+            if (!match) {  // make sure that we make progress
+              style = PR_PLAIN;
+            }
+          }
+
+          isEmbedded = style.length >= 5 && 'lang-' === style.substring(0, 5);
+          if (isEmbedded && !(match && typeof match[1] === 'string')) {
+            isEmbedded = false;
+            style = PR_SOURCE;
+          }
+
+          if (!isEmbedded) { styleCache[token] = style; }
+        }
+
+        var tokenStart = pos;
+        pos += token.length;
+
+        if (!isEmbedded) {
+          decorations.push(basePos + tokenStart, style);
+        } else {  // Treat group 1 as an embedded block of source code.
+          var embeddedSource = match[1];
+          var embeddedSourceStart = token.indexOf(embeddedSource);
+          var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length;
+          if (match[2]) {
+            // If embeddedSource can be blank, then it would match at the
+            // beginning which would cause us to infinitely recurse on the
+            // entire token, so we catch the right context in match[2].
+            embeddedSourceEnd = token.length - match[2].length;
+            embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
+          }
+          var lang = style.substring(5);
+          // Decorate the left of the embedded source
+          appendDecorations(
+              basePos + tokenStart,
+              token.substring(0, embeddedSourceStart),
+              decorate, decorations);
+          // Decorate the embedded source
+          appendDecorations(
+              basePos + tokenStart + embeddedSourceStart,
+              embeddedSource,
+              langHandlerForExtension(lang, embeddedSource),
+              decorations);
+          // Decorate the right of the embedded section
+          appendDecorations(
+              basePos + tokenStart + embeddedSourceEnd,
+              token.substring(embeddedSourceEnd),
+              decorate, decorations);
+        }
+      }
+      job.decorations = decorations;
+    };
+    return decorate;
+  }
+
+  /** returns a function that produces a list of decorations from source text.
+    *
+    * This code treats ", ', and ` as string delimiters, and \ as a string
+    * escape.  It does not recognize perl's qq() style strings.
+    * It has no special handling for double delimiter escapes as in basic, or
+    * the tripled delimiters used in python, but should work on those regardless
+    * although in those cases a single string literal may be broken up into
+    * multiple adjacent string literals.
+    *
+    * It recognizes C, C++, and shell style comments.
+    *
+    * @param {Object} options a set of optional parameters.
+    * @return {function (Object)} a function that examines the source code
+    *     in the input job and builds the decoration list.
+    */
+  function sourceDecorator(options) {
+    var shortcutStylePatterns = [], fallthroughStylePatterns = [];
+    if (options['tripleQuotedStrings']) {
+      // '''multi-line-string''', 'single-line-string', and double-quoted
+      shortcutStylePatterns.push(
+          [PR_STRING,  /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,
+           null, '\'"']);
+    } else if (options['multiLineStrings']) {
+      // 'multi-line-string', "multi-line-string"
+      shortcutStylePatterns.push(
+          [PR_STRING,  /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,
+           null, '\'"`']);
+    } else {
+      // 'single-line-string', "single-line-string"
+      shortcutStylePatterns.push(
+          [PR_STRING,
+           /^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,
+           null, '"\'']);
+    }
+    if (options['verbatimStrings']) {
+      // verbatim-string-literal production from the C# grammar.  See issue 93.
+      fallthroughStylePatterns.push(
+          [PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
+    }
+    var hc = options['hashComments'];
+    if (hc) {
+      if (options['cStyleComments']) {
+        if (hc > 1) {  // multiline hash comments
+          shortcutStylePatterns.push(
+              [PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);
+        } else {
+          // Stop C preprocessor declarations at an unclosed open comment
+          shortcutStylePatterns.push(
+              [PR_COMMENT, /^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/,
+               null, '#']);
+        }
+        fallthroughStylePatterns.push(
+            [PR_STRING,
+             /^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h|[a-z]\w*)>/,
+             null]);
+      } else {
+        shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
+      }
+    }
+    if (options['cStyleComments']) {
+      fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
+      fallthroughStylePatterns.push(
+          [PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
+    }
+    if (options['regexLiterals']) {
+      var REGEX_LITERAL = (
+          // A regular expression literal starts with a slash that is
+          // not followed by * or / so that it is not confused with
+          // comments.
+          '/(?=[^/*])'
+          // and then contains any number of raw characters,
+          + '(?:[^/\\x5B\\x5C]'
+          // escape sequences (\x5C),
+          +    '|\\x5C[\\s\\S]'
+          // or non-nesting character sets (\x5B\x5D);
+          +    '|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+'
+          // finally closed by a /.
+          + '/');
+      fallthroughStylePatterns.push(
+          ['lang-regex',
+           new RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
+           ]);
+    }
+
+    var keywords = options['keywords'].replace(/^\s+|\s+$/g, '');
+    if (keywords.length) {
+      fallthroughStylePatterns.push(
+          [PR_KEYWORD,
+           new RegExp('^(?:' + keywords.replace(/\s+/g, '|') + ')\\b'), null]);
+    }
+
+    shortcutStylePatterns.push([PR_PLAIN,       /^\s+/, null, ' \r\n\t\xA0']);
+    fallthroughStylePatterns.push(
+        // TODO(mikesamuel): recognize non-latin letters and numerals in idents
+        [PR_LITERAL,     /^@[a-z_$][a-z_$@0-9]*/i, null],
+        [PR_TYPE,        /^@?[A-Z]+[a-z][A-Za-z_$@0-9]*/, null],
+        [PR_PLAIN,       /^[a-z_$][a-z_$@0-9]*/i, null],
+        [PR_LITERAL,
+         new RegExp(
+             '^(?:'
+             // A hex number
+             + '0x[a-f0-9]+'
+             // or an octal or decimal number,
+             + '|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)'
+             // possibly in scientific notation
+             + '(?:e[+\\-]?\\d+)?'
+             + ')'
+             // with an optional modifier like UL for unsigned long
+             + '[a-z]*', 'i'),
+         null, '0123456789'],
+        [PR_PUNCTUATION, /^.[^\s\w\.$@\'\"\`\/\#]*/, null]);
+
+    return createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns);
+  }
+
+  var decorateSource = sourceDecorator({
+        'keywords': ALL_KEYWORDS,
+        'hashComments': true,
+        'cStyleComments': true,
+        'multiLineStrings': true,
+        'regexLiterals': true
+      });
+
+  /** Breaks {@code job.source} around style boundaries in
+    * {@code job.decorations} while re-interleaving {@code job.extractedTags},
+    * and leaves the result in {@code job.prettyPrintedHtml}.
+    * @param {Object} job like {
+    *    source: {string} source as plain text,
+    *    extractedTags: {Array.<number|string>} extractedTags chunks of raw
+    *                   html preceded by their position in {@code job.source}
+    *                   in order
+    *    decorations: {Array.<number|string} an array of style classes preceded
+    *                 by the position at which they start in job.source in order
+    * }
+    * @private
+    */
+  function recombineTagsAndDecorations(job) {
+    var sourceText = job.source;
+    var extractedTags = job.extractedTags;
+    var decorations = job.decorations;
+    var numberLines = job.numberLines;
+    var sourceNode = job.sourceNode;
+
+    var html = [];
+    // index past the last char in sourceText written to html
+    var outputIdx = 0;
+
+    var openDecoration = null;
+    var currentDecoration = null;
+    var tagPos = 0;  // index into extractedTags
+    var decPos = 0;  // index into decorations
+    var tabExpander = makeTabExpander(window['PR_TAB_WIDTH']);
+
+    var adjacentSpaceRe = /([\r\n ]) /g;
+    var startOrSpaceRe = /(^| ) /gm;
+    var newlineRe = /\r\n?|\n/g;
+    var trailingSpaceRe = /[ \r\n]$/;
+    var lastWasSpace = true;  // the last text chunk emitted ended with a space.
+
+    // See bug 71 and http://stackoverflow.com/questions/136443/why-doesnt-ie7-
+    var isIE678 = window['_pr_isIE6']();
+    var lineBreakHtml = (
+        isIE678
+        ? (sourceNode && sourceNode.tagName === 'PRE'
+           // Use line feeds instead of <br>s so that copying and pasting works
+           // on IE.
+           // See Issue 104 for the derivation of this mess.
+           ? (isIE678 === 6 ? '&#160;\r\n' :
+              isIE678 === 7 ? '&#160;<br />\r' :
+              isIE678 === 8 ? '&#160;<br />' : '&#160;\r')
+           // IE collapses multiple adjacent <br>s into 1 line break.
+           // Prefix every newline with '&#160;' to prevent such behavior.
+           // &nbsp; is the same as &#160; but works in XML as well as HTML.
+           : '&#160;<br />')
+        : '<br />');
+
+    var lineBreaker;
+    if (numberLines) {
+      var lineBreaks = [];
+      for (var i = 0; i < 10; ++i) {
+        lineBreaks[i] = lineBreakHtml + '</li><li class="L' + i + '">';
+      }
+      var lineNum = typeof numberLines === 'number'
+          ? numberLines - 1 /* number lines are 1 indexed */ : 0;
+      html.push('<ol class="linenums"><li class="L', (lineNum) % 10, '"');
+      if (lineNum) {
+        html.push(' value="', lineNum + 1, '"');
+      }
+      html.push('>');
+      lineBreaker = function () {
+        var lb = lineBreaks[++lineNum % 10];
+        // If a decoration is open, we need to close it before closing a list-item
+        // and reopen it on the other side of the list item.
+        return openDecoration
+            ? ('</span>' + lb + '<span class="' + openDecoration + '">') : lb;
+      };
+    } else {
+      lineBreaker = lineBreakHtml;
+    }
+
+    // A helper function that is responsible for opening sections of decoration
+    // and outputing properly escaped chunks of source
+    function emitTextUpTo(sourceIdx) {
+      if (sourceIdx > outputIdx) {
+        if (openDecoration && openDecoration !== currentDecoration) {
+          // Close the current decoration
+          html.push('</span>');
+          openDecoration = null;
+        }
+        if (!openDecoration && currentDecoration) {
+          openDecoration = currentDecoration;
+          html.push('<span class="', openDecoration, '">');
+        }
+        // This interacts badly with some wikis which introduces paragraph tags
+        // into pre blocks for some strange reason.
+        // It's necessary for IE though which seems to lose the preformattedness
+        // of <pre> tags when their innerHTML is assigned.
+        // http://stud3.tuwien.ac.at/~e0226430/innerHtmlQuirk.html
+        // and it serves to undo the conversion of <br>s to newlines done in
+        // chunkify.
+        var htmlChunk = textToHtml(
+            tabExpander(sourceText.substring(outputIdx, sourceIdx)))
+            .replace(lastWasSpace
+                     ? startOrSpaceRe
+                     : adjacentSpaceRe, '$1&#160;');
+        // Keep track of whether we need to escape space at the beginning of the
+        // next chunk.
+        lastWasSpace = trailingSpaceRe.test(htmlChunk);
+        html.push(htmlChunk.replace(newlineRe, lineBreaker));
+        outputIdx = sourceIdx;
+      }
+    }
+
+    while (true) {
+      // Determine if we're going to consume a tag this time around.  Otherwise
+      // we consume a decoration or exit.
+      var outputTag;
+      if (tagPos < extractedTags.length) {
+        if (decPos < decorations.length) {
+          // Pick one giving preference to extractedTags since we shouldn't open
+          // a new style that we're going to have to immediately close in order
+          // to output a tag.
+          outputTag = extractedTags[tagPos] <= decorations[decPos];
+        } else {
+          outputTag = true;
+        }
+      } else {
+        outputTag = false;
+      }
+      // Consume either a decoration or a tag or exit.
+      if (outputTag) {
+        emitTextUpTo(extractedTags[tagPos]);
+        if (openDecoration) {
+          // Close the current decoration
+          html.push('</span>');
+          openDecoration = null;
+        }
+        html.push(extractedTags[tagPos + 1]);
+        tagPos += 2;
+      } else if (decPos < decorations.length) {
+        emitTextUpTo(decorations[decPos]);
+        currentDecoration = decorations[decPos + 1];
+        decPos += 2;
+      } else {
+        break;
+      }
+    }
+    emitTextUpTo(sourceText.length);
+    if (openDecoration) {
+      html.push('</span>');
+    }
+    if (numberLines) { html.push('</li></ol>'); }
+    job.prettyPrintedHtml = html.join('');
+  }
+
+  /** Maps language-specific file extensions to handlers. */
+  var langHandlerRegistry = {};
+  /** Register a language handler for the given file extensions.
+    * @param {function (Object)} handler a function from source code to a list
+    *      of decorations.  Takes a single argument job which describes the
+    *      state of the computation.   The single parameter has the form
+    *      {@code {
+    *        source: {string} as plain text.
+    *        decorations: {Array.<number|string>} an array of style classes
+    *                     preceded by the position at which they start in
+    *                     job.source in order.
+    *                     The language handler should assigned this field.
+    *        basePos: {int} the position of source in the larger source chunk.
+    *                 All positions in the output decorations array are relative
+    *                 to the larger source chunk.
+    *      } }
+    * @param {Array.<string>} fileExtensions
+    */
+  function registerLangHandler(handler, fileExtensions) {
+    for (var i = fileExtensions.length; --i >= 0;) {
+      var ext = fileExtensions[i];
+      if (!langHandlerRegistry.hasOwnProperty(ext)) {
+        langHandlerRegistry[ext] = handler;
+      } else if ('console' in window) {
+        console['warn']('cannot override language handler %s', ext);
+      }
+    }
+  }
+  function langHandlerForExtension(extension, source) {
+    if (!(extension && langHandlerRegistry.hasOwnProperty(extension))) {
+      // Treat it as markup if the first non whitespace character is a < and
+      // the last non-whitespace character is a >.
+      extension = /^\s*</.test(source)
+          ? 'default-markup'
+          : 'default-code';
+    }
+    return langHandlerRegistry[extension];
+  }
+  registerLangHandler(decorateSource, ['default-code']);
+  registerLangHandler(
+      createSimpleLexer(
+          [],
+          [
+           [PR_PLAIN,       /^[^<?]+/],
+           [PR_DECLARATION, /^<!\w[^>]*(?:>|$)/],
+           [PR_COMMENT,     /^<\!--[\s\S]*?(?:-\->|$)/],
+           // Unescaped content in an unknown language
+           ['lang-',        /^<\?([\s\S]+?)(?:\?>|$)/],
+           ['lang-',        /^<%([\s\S]+?)(?:%>|$)/],
+           [PR_PUNCTUATION, /^(?:<[%?]|[%?]>)/],
+           ['lang-',        /^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],
+           // Unescaped content in javascript.  (Or possibly vbscript).
+           ['lang-js',      /^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],
+           // Contains unescaped stylesheet content
+           ['lang-css',     /^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],
+           ['lang-in.tag',  /^(<\/?[a-z][^<>]*>)/i]
+          ]),
+      ['default-markup', 'htm', 'html', 'mxml', 'xhtml', 'xml', 'xsl']);
+  registerLangHandler(
+      createSimpleLexer(
+          [
+           [PR_PLAIN,        /^[\s]+/, null, ' \t\r\n'],
+           [PR_ATTRIB_VALUE, /^(?:\"[^\"]*\"?|\'[^\']*\'?)/, null, '\"\'']
+           ],
+          [
+           [PR_TAG,          /^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],
+           [PR_ATTRIB_NAME,  /^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],
+           ['lang-uq.val',   /^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],
+           [PR_PUNCTUATION,  /^[=<>\/]+/],
+           ['lang-js',       /^on\w+\s*=\s*\"([^\"]+)\"/i],
+           ['lang-js',       /^on\w+\s*=\s*\'([^\']+)\'/i],
+           ['lang-js',       /^on\w+\s*=\s*([^\"\'>\s]+)/i],
+           ['lang-css',      /^style\s*=\s*\"([^\"]+)\"/i],
+           ['lang-css',      /^style\s*=\s*\'([^\']+)\'/i],
+           ['lang-css',      /^style\s*=\s*([^\"\'>\s]+)/i]
+           ]),
+      ['in.tag']);
+  registerLangHandler(
+      createSimpleLexer([], [[PR_ATTRIB_VALUE, /^[\s\S]+/]]), ['uq.val']);
+  registerLangHandler(sourceDecorator({
+          'keywords': CPP_KEYWORDS,
+          'hashComments': true,
+          'cStyleComments': true
+        }), ['c', 'cc', 'cpp', 'cxx', 'cyc', 'm']);
+  registerLangHandler(sourceDecorator({
+          'keywords': 'null true false'
+        }), ['json']);
+  registerLangHandler(sourceDecorator({
+          'keywords': CSHARP_KEYWORDS,
+          'hashComments': true,
+          'cStyleComments': true,
+          'verbatimStrings': true
+        }), ['cs']);
+  registerLangHandler(sourceDecorator({
+          'keywords': JAVA_KEYWORDS,
+          'cStyleComments': true
+        }), ['java']);
+  registerLangHandler(sourceDecorator({
+          'keywords': SH_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true
+        }), ['bsh', 'csh', 'sh']);
+  registerLangHandler(sourceDecorator({
+          'keywords': PYTHON_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true,
+          'tripleQuotedStrings': true
+        }), ['cv', 'py']);
+  registerLangHandler(sourceDecorator({
+          'keywords': PERL_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true,
+          'regexLiterals': true
+        }), ['perl', 'pl', 'pm']);
+  registerLangHandler(sourceDecorator({
+          'keywords': RUBY_KEYWORDS,
+          'hashComments': true,
+          'multiLineStrings': true,
+          'regexLiterals': true
+        }), ['rb']);
+  registerLangHandler(sourceDecorator({
+          'keywords': JSCRIPT_KEYWORDS,
+          'cStyleComments': true,
+          'regexLiterals': true
+        }), ['js']);
+  registerLangHandler(sourceDecorator({
+          'keywords': COFFEE_KEYWORDS,
+          'hashComments': 3,  // ### style block comments
+          'cStyleComments': true,
+          'multilineStrings': true,
+          'tripleQuotedStrings': true,
+          'regexLiterals': true
+        }), ['coffee']);
+  registerLangHandler(createSimpleLexer([], [[PR_STRING, /^[\s\S]+/]]), ['regex']);
+
+  function applyDecorator(job) {
+    var sourceCodeHtml = job.sourceCodeHtml;
+    var opt_langExtension = job.langExtension;
+
+    // Prepopulate output in case processing fails with an exception.
+    job.prettyPrintedHtml = sourceCodeHtml;
+
+    try {
+      // Extract tags, and convert the source code to plain text.
+      var sourceAndExtractedTags = extractTags(sourceCodeHtml);
+      /** Plain text. @type {string} */
+      var source = sourceAndExtractedTags.source;
+      job.source = source;
+      job.basePos = 0;
+
+      /** Even entries are positions in source in ascending order.  Odd entries
+        * are tags that were extracted at that position.
+        * @type {Array.<number|string>}
+        */
+      job.extractedTags = sourceAndExtractedTags.tags;
+
+      // Apply the appropriate language handler
+      langHandlerForExtension(opt_langExtension, source)(job);
+      // Integrate the decorations and tags back into the source code to produce
+      // a decorated html string which is left in job.prettyPrintedHtml.
+      recombineTagsAndDecorations(job);
+    } catch (e) {
+      if ('console' in window) {
+        console['log'](e && e['stack'] ? e['stack'] : e);
+      }
+    }
+  }
+
+  /**
+   * @param sourceCodeHtml {string} The HTML to pretty print.
+   * @param opt_langExtension {string} The language name to use.
+   *     Typically, a filename extension like 'cpp' or 'java'.
+   * @param opt_numberLines {number|boolean} True to number lines,
+   *     or the 1-indexed number of the first line in sourceCodeHtml.
+   */
+  function prettyPrintOne(sourceCodeHtml, opt_langExtension, opt_numberLines) {
+    var job = {
+      sourceCodeHtml: sourceCodeHtml,
+      langExtension: opt_langExtension,
+      numberLines: opt_numberLines
+    };
+    applyDecorator(job);
+    return job.prettyPrintedHtml;
+  }
+
+  function prettyPrint(opt_whenDone) {
+    function byTagName(tn) { return document.getElementsByTagName(tn); }
+    // fetch a list of nodes to rewrite
+    var codeSegments = [byTagName('pre'), byTagName('code'), byTagName('xmp')];
+    var elements = [];
+    for (var i = 0; i < codeSegments.length; ++i) {
+      for (var j = 0, n = codeSegments[i].length; j < n; ++j) {
+        elements.push(codeSegments[i][j]);
+      }
+    }
+    codeSegments = null;
+
+    var clock = Date;
+    if (!clock['now']) {
+      clock = { 'now': function () { return (new Date).getTime(); } };
+    }
+
+    // The loop is broken into a series of continuations to make sure that we
+    // don't make the browser unresponsive when rewriting a large page.
+    var k = 0;
+    var prettyPrintingJob;
+
+    function doWork() {
+      var endTime = (window['PR_SHOULD_USE_CONTINUATION'] ?
+                     clock.now() + 250 /* ms */ :
+                     Infinity);
+      for (; k < elements.length && clock.now() < endTime; k++) {
+        var cs = elements[k];
+        if (cs.className && cs.className.indexOf('prettyprint') >= 0) {
+          // If the classes includes a language extensions, use it.
+          // Language extensions can be specified like
+          //     <pre class="prettyprint lang-cpp">
+          // the language extension "cpp" is used to find a language handler as
+          // passed to PR.registerLangHandler.
+          var langExtension = cs.className.match(/\blang-(\w+)\b/);
+          if (langExtension) { langExtension = langExtension[1]; }
+
+          // make sure this is not nested in an already prettified element
+          var nested = false;
+          for (var p = cs.parentNode; p; p = p.parentNode) {
+            if ((p.tagName === 'pre' || p.tagName === 'code' ||
+                 p.tagName === 'xmp') &&
+                p.className && p.className.indexOf('prettyprint') >= 0) {
+              nested = true;
+              break;
+            }
+          }
+          if (!nested) {
+            // fetch the content as a snippet of properly escaped HTML.
+            // Firefox adds newlines at the end.
+            var content = getInnerHtml(cs);
+            content = content.replace(/(?:\r\n?|\n)$/, '');
+
+            // Look for a class like linenums or linenums:<n> where <n> is the
+            // 1-indexed number of the first line.
+            var numberLines = cs.className.match(/\blinenums\b(?::(\d+))?/);
+
+            // do the pretty printing
+            prettyPrintingJob = {
+              sourceCodeHtml: content,
+              langExtension: langExtension,
+              sourceNode: cs,
+              numberLines: numberLines
+                  ? numberLines[1] && numberLines[1].length ? +numberLines[1] : true
+                  : false
+            };
+            applyDecorator(prettyPrintingJob);
+            replaceWithPrettyPrintedHtml();
+          }
+        }
+      }
+      if (k < elements.length) {
+        // finish up in a continuation
+        setTimeout(doWork, 250);
+      } else if (opt_whenDone) {
+        opt_whenDone();
+      }
+    }
+
+    function replaceWithPrettyPrintedHtml() {
+      var newContent = prettyPrintingJob.prettyPrintedHtml;
+      if (!newContent) { return; }
+      var cs = prettyPrintingJob.sourceNode;
+
+      // push the prettified html back into the tag.
+      if (!isRawContent(cs)) {
+        // just replace the old html with the new
+        cs.innerHTML = newContent;
+      } else {
+        // we need to change the tag to a <pre> since <xmp>s do not allow
+        // embedded tags such as the span tags used to attach styles to
+        // sections of source code.
+        var pre = document.createElement('PRE');
+        for (var i = 0; i < cs.attributes.length; ++i) {
+          var a = cs.attributes[i];
+          if (a.specified) {
+            var aname = a.name.toLowerCase();
+            if (aname === 'class') {
+              pre.className = a.value;  // For IE 6
+            } else {
+              pre.setAttribute(a.name, a.value);
+            }
+          }
+        }
+        pre.innerHTML = newContent;
+
+        // remove the old
+        cs.parentNode.replaceChild(pre, cs);
+        cs = pre;
+      }
+    }
+
+    doWork();
+  }
+
+  window['PR_normalizedHtml'] = normalizedHtml;
+  window['prettyPrintOne'] = prettyPrintOne;
+  window['prettyPrint'] = prettyPrint;
+  window['PR'] = {
+        'combinePrefixPatterns': combinePrefixPatterns,
+        'createSimpleLexer': createSimpleLexer,
+        'registerLangHandler': registerLangHandler,
+        'sourceDecorator': sourceDecorator,
+        'PR_ATTRIB_NAME': PR_ATTRIB_NAME,
+        'PR_ATTRIB_VALUE': PR_ATTRIB_VALUE,
+        'PR_COMMENT': PR_COMMENT,
+        'PR_DECLARATION': PR_DECLARATION,
+        'PR_KEYWORD': PR_KEYWORD,
+        'PR_LITERAL': PR_LITERAL,
+        'PR_NOCODE': PR_NOCODE,
+        'PR_PLAIN': PR_PLAIN,
+        'PR_PUNCTUATION': PR_PUNCTUATION,
+        'PR_SOURCE': PR_SOURCE,
+        'PR_STRING': PR_STRING,
+        'PR_TAG': PR_TAG,
+        'PR_TYPE': PR_TYPE
+      };
+})();
diff --git a/gui.js b/gui.js
index 03d3c8c..96baa02 100644
--- a/gui.js
+++ b/gui.js
@@ -1,66 +1,34 @@
-var GUI = new function() {
+var GUI = function () {
 
-	var _this = this;
-	
-	var controllers = [];
+	var _this = this, open = false,
+	controllers = [], controllersWatched = [];
 
-	this.add = function() {
-	
-		// We need to call GUI.start() before .add()
-		if (!started) {
-			error("Make sure to call GUI.start() in the window.onload function");
-			return;
-		}
-	
-		var object = arguments[0];
-		var propertyName = arguments[1];
-	
-		// Have we already added this?
-		if (alreadyControlled(object, propertyName)) {
-			error("Controller for \"" + propertyName+"\" already added.");
-			return;
-		}
-	
-		var value = object[propertyName];
-		
-		// Does this value exist? Is it accessible?
-		if (value == undefined) {
-			error(object + " either has no property \""+propertyName+"\", or the property is inaccessible.");
-			return;
-		}
-		
-		var type = typeof value;
-		var handler = addHandlers[type];
-		
-		// Do we know how to deal with this data type?
-		if (handler == undefined) {
-			error("Cannot create controller for data type \""+type+"\"");
-			return;
-		}
-	
-		var controllerObject = construct(handler, arguments);
-		
-		// Were we able to make the controller?
-		if (!controllerObject) {		
-			error("Error creating controller for \""+propertyName+"\".");	
-			return;
-		}
-		
-		// Success.
-		controllerContainer.appendChild(controllerObject.domElement);
-		controllers.push(controllerObject);
-		
-		return controllerObject;
-		
-	}
-	
-	var addHandlers = {
+	this.domElement = document.createElement('div');
+	this.domElement.setAttribute('id', 'guidat');
+
+	controllerContainer = document.createElement('div');
+	controllerContainer.setAttribute('id', 'guidat-controllers');
+	controllerContainer.style.height = '0px';
+
+	toggleButton = document.createElement('a');
+	toggleButton.setAttribute('id', 'guidat-toggle');
+	toggleButton.setAttribute('href', '#');
+	toggleButton.innerHTML = "Show Controls";
+	toggleButton.addEventListener('click', function(e) {
+		_this.toggle();
+		e.preventDefault();
+	}, false);
+
+	this.domElement.appendChild(controllerContainer);
+	this.domElement.appendChild(toggleButton);
+
+	var handlerTypes = {
 		"number": NumberController,
 		"string": StringController,
 		"boolean": BooleanController,
 		"function": FunctionController
 	};
-	
+
 	var alreadyControlled = function(object, propertyName) {
 		for (var i in controllers) {
 			if (controllers[i].object == object &&
@@ -70,81 +38,86 @@ var GUI = new function() {
 		}
 		return false;
 	};
-	
+
 	var error = function(str) {
 		if (typeof console.log == 'function') {
 			console.error("[GUI ERROR] " + str);
 		}
 	};
-	
+
 	var construct = function(constructor, args) {
-        function F() {
-            return constructor.apply(this, args);
-        }
-        F.prototype = constructor.prototype;
-        return new F();
-    };
-
-
-
-	// GUI ... GUI
-	
-	this.domElement = null;
-	var controllerContainer;
-	var started = false;
-	var open = false;
-	
-	// TODO: obtain this dynamically?
-	var domElementMarginTop = 300;
-	
-	this.start = function() {
-		
-		this.domElement = document.createElement('div');
-		this.domElement.setAttribute('id', 'guidat');
-		
-		controllerContainer = document.createElement('div');
-		controllerContainer.setAttribute('id', 'guidat-controllers');
-		
-		toggleButton = document.createElement('a');
-		toggleButton.setAttribute('id', 'guidat-toggle');
-		toggleButton.setAttribute('href', '#');
-		toggleButton.innerHTML = "Show Controls";
-		toggleButton.addEventListener('click', function(e) {
-			_this.toggle();
-			e.preventDefault();
-		}, false);
-		
-		this.domElement.appendChild(controllerContainer);
-		this.domElement.appendChild(toggleButton);
-		
-		this.domElement.style.marginTop = -domElementMarginTop+"px";
-		
-		document.body.appendChild(this.domElement);
-		
-		started = true;
-		
+		function F() {
+		    return constructor.apply(this, args);
+		}
+		F.prototype = constructor.prototype;
+		return new F();
 	};
-	
+
+	this.add = function() {
+
+		var object = arguments[0];
+		var propertyName = arguments[1];
+
+		// Have we already added this?
+		if (alreadyControlled(object, propertyName)) {
+			error("Controller for \"" + propertyName+"\" already added.");
+			return;
+		}
+
+		var value = object[propertyName];
+
+		// Does this value exist? Is it accessible?
+		if (value == undefined) {
+			error(object + " either has no property \""+propertyName+"\", or the property is inaccessible.");
+			return;
+		}
+
+		var type = typeof value;
+		var handler = handlerTypes[type];
+
+		// Do we know how to deal with this data type?
+		if (handler == undefined) {
+			error("Cannot create controller for data type \""+type+"\"");
+			return;
+		}
+
+		var controllerObject = construct( handler, arguments);
+		controllerObject.parent = _this;
+
+		// Were we able to make the controller?
+		if (!controllerObject) {
+			error("Error creating controller for \""+propertyName+"\".");
+			return;
+		}
+
+		// Success.
+		controllerContainer.appendChild(controllerObject.domElement);
+		controllers.push(controllerObject);
+
+		return controllerObject;
+
+	}
+
 	this.toggle = function() {
-		
+
 		if (open) {
 			this.hide();
-		} else { 
+		} else {
 			this.show();
 		}
-		
+
 	};
-	
+
 	this.show = function() {
-		this.domElement.style.marginTop = 0+"px";
+		controllerContainer.style.height = '300px';
 		toggleButton.innerHTML = "Hide Controls";
 		open = true;
 	}
-	
+
 	this.hide = function() {
-		this.domElement.style.marginTop = -domElementMarginTop+"px";
+		controllerContainer.style.height = '0px';
 		toggleButton.innerHTML = "Show Controls";
 		open = false;
 	}
-	
+
 };
diff --git a/index.html b/index.html
index dffb602..e08f68e 100644
--- a/index.html
+++ b/index.html
@@ -1,46 +1,58 @@
 <!doctype html>
     <head>
         <title>gui-dat</title>
-        
+
         <link rel="icon" type="image/png" href="demo/assets/favicon.png" />
         <link href="demo/demo.css" media="screen" rel="stylesheet" type="text/css" />
-        <script type="text/javascript" src="http://google-code-prettify.googlecode.com/svn/trunk/src/prettify.js"></script>
-        <script type="text/javascript" src="gui.min.js"></script>
+
+	<!-- <script type="text/javascript" src="gui.min.js"></script> -->
+
+	<link href="gui.css" media="screen" rel="stylesheet" type="text/css" />
+
+	<script type="text/javascript" src="controllers/slider.js"></script>
+	<script type="text/javascript" src="controllers/controller.js"></script>
+	<script type="text/javascript" src="controllers/controller.boolean.js"></script>
+	<script type="text/javascript" src="controllers/controller.function.js"></script>
+	<script type="text/javascript" src="controllers/controller.number.js"></script>
+	<script type="text/javascript" src="controllers/controller.string.js"></script>
+	<script type="text/javascript" src="gui.js"></script>
+
         <script type="text/javascript" src="demo/improvedNoise.js"></script>
+        <script type="text/javascript" src="demo/prettify.js"></script>
         <script type="text/javascript" src="demo/demo.js"></script>
         <script type="text/javascript">
             window.onload = function() {
 
-			   prettyPrint();
+		prettyPrint();
 
-               var fizzyText = new FizzyText("gui-dat");
+		var fizzyText = new FizzyText("gui-dat");
 
-               GUI.start();
-               
-               // Text field
-               GUI.add(fizzyText, "message");
+		var gui = new GUI();
+		document.body.appendChild( gui.domElement );
+
+		// Text field
+		gui.add(fizzyText, "message");
+
+		// Sliders with min and max
+		gui.add(fizzyText, "maxSize", 0.5, 7);
+		gui.add(fizzyText, "growthSpeed", 0.01, 1);
+		gui.add(fizzyText, "speed", 0.1, 2);
+
+		// Sliders with min, max and increment.
+		gui.add(fizzyText, "noiseStrength", 10, 100, 5);
+
+		// Boolean checkbox
+		gui.add(fizzyText, "displayOutline");
+
+		// Fires a function called "explode"
+		gui.add(fizzyText, "explode").setName('Explode!');    // Specify a custom name.
 
-               // Sliders with min and max
-               GUI.add(fizzyText, "maxSize", 0.5, 7);
-               GUI.add(fizzyText, "growthSpeed", 0.01, 1);
-               GUI.add(fizzyText, "speed", 0.1, 2);
-               
-               // Sliders with min, max and increment.
-               GUI.add(fizzyText, "noiseStrength", 10, 100, 5);
-               
-               // Boolean checkbox
-               GUI.add(fizzyText, "displayOutline");
-	
-			   // Fires a function called "explode"
-               GUI.add(fizzyText, "explode")
-                    .setName('Explode!');    // Specify a custom name.
-               
             };
-            
+
             var _gaq = _gaq || [];
             _gaq.push(['_setAccount', 'UA-20996084-1']);
             _gaq.push(['_trackPageview']);
-            
+
             (function() {
                 var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
                 ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
@@ -49,21 +61,20 @@
         </script>
     </head>
     <body>
-    	<div id="container">
 	    <div id = "helvetica-demo"></div>
 	    <div id = "notifier"></div>
         <h1><a href = "http://twitter.com/guidat"><img src = "demo/assets/profile.png" border = "0" alt = "GUI-DAT flag" /></a></h1>
         <p>
             <strong>gui-dat</strong> is a lightweight controller library for JavaScript. It allows you to easily manipulate variables and fire functions on the fly.
         </p>
-    
+
 		<ul>
 			<li><a href="https://github.com/jonobr1/GUI-DAT/raw/master/gui.min.js"><strong>Download the minified source</strong></a> <small>[9.8kb]</small></li>
         	<li><a href="http://github.com/jonobr1/GUI-DAT">Contribute on GitHub!</a></li>
         </ul>
-    
+
         <h2>Basic Usage</h2>
-        <pre class="prettyprint">&lt;script type=&quot;text/javascript&quot; src=&quot;demo/demo.js&quot;&gt;&lt;/script&gt;
+        <pre id="demo-pre" class="prettyprint">&lt;script type=&quot;text/javascript&quot; src=&quot;demo/demo.js&quot;&gt;&lt;/script&gt;
 &lt;script type=&quot;text/javascript&quot;&gt;
 
 window.onload = function() {
@@ -71,7 +82,7 @@ window.onload = function() {
    var fizzyText = new <a href="demo/demo.js">FizzyText</a>(&quot;gui-dat&quot;);
 
    GUI.start();
-   
+
    // Text field
    GUI.add(fizzyText, &quot;message&quot;);
 
@@ -79,38 +90,26 @@ window.onload = function() {
    GUI.add(fizzyText, &quot;maxSize&quot;, 0.5, 7);
    GUI.add(fizzyText, &quot;growthSpeed&quot;, 0.01, 1);
    GUI.add(fizzyText, &quot;speed&quot;, 0.1, 2);
-   
-   // Sliders with min, max and increment
+
+   // Sliders with min, max and increment.
    GUI.add(fizzyText, &quot;noiseStrength&quot;, 10, 100, 5);
-   
+
    // Boolean checkbox
    GUI.add(fizzyText, &quot;displayOutline&quot;);
 
    // Fires a function called &quot;explode&quot;
-   GUI.add(fizzyText, &quot;explode&quot;).setName(&quot;Explode!&quot;); // Specify a custom name.
-   
+   GUI.add(fizzyText, &quot;explode&quot;).setName(&#039;Explode!&#039;); // Specify a custom name.
+
 };
 
 &lt;/script&gt;</pre>
-        
+
     	<ul id="desc">
     		<li><strong>gui-dat</strong> will infer the type of the property you're trying to add<br/>(based on its initial value) and create the corresponding control.</li>
     		<li>The properties must be public, i.e. defined by <code><strong>this</strong>.prop = value</code>.</li>
     	</ul>
-    	<!--
-		<hr/>
-    	<h2>Monitor variable changes <em>outside</em> of the GUI</h2>
-    	<p>Let's say you have a variable that changes by itself from time to time. If you'd like the GUI to reflect those changes, use the <code>listen()</code> method.</p>
-    	<pre class="prettyprint">GUI.add(obj, "propName").listen();</pre>
-
-    	<h2>Fire a function when someone uses a control</h2>
-    	<pre class="prettyprint">GUI.add(obj, "propName").onChange(function(n) {
-	alert("You changed me to " + n);
-});</pre>
--->
-		<footer> 
-            Initiated by <a href="http://georgemichaelbrower.com/">George Michael Brower</a> and <a href="http://jonobr1.com/">Jono Brandel</a> of the Data Arts Team, Google Creative Lab.
-        </footer> 
-		</div>
+		<footer>
+            By <a href="http://georgemichaelbrower.com/">George Michael Brower</a>, <a href="http://jonobr1.com/">Jono Brandel</a>, and <a href="http://github.com/jonobr1/GUI-DAT">you</a>.
+        </footer>
     </body>
-</html>
\ No newline at end of file
+</html>