diff --git a/public/javascripts/prototype.js b/public/javascripts/prototype.js
new file mode 100644
index 00000000..62bbc98e
--- /dev/null
+++ b/public/javascripts/prototype.js
@@ -0,0 +1,336 @@
+/*  Prototype: an object-oriented Javascript library, version 1.0.1
+ *  (c) 2005 Sam Stephenson <sam@conio.net>
+ *
+ *  Prototype is freely distributable under the terms of an MIT-style license. 
+ *  For details, see http://prototype.conio.net/
+ */
+
+Prototype = {
+  Version: '1.0.1'
+}
+
+Class = {
+  create: function() {
+    return function() { 
+      this.initialize.apply(this, arguments);
+    }
+  }
+}
+
+Abstract = new Object();
+
+Object.prototype.extend = function(object) {
+  for (property in object) {
+    this[property] = object[property];
+  }
+  return this;
+}
+
+Function.prototype.bind = function(object) {
+  var method = this;
+  return function() {
+    method.apply(object, arguments);
+  }
+}
+
+Function.prototype.bindAsEventListener = function(object) {
+  var method = this;
+  return function(event) {
+    method.call(object, event || window.event);
+  }
+}
+
+Try = {
+  these: function() {
+    var returnValue;
+    
+    for (var i = 0; i < arguments.length; i++) {
+      var lambda = arguments[i];
+      try {
+        returnValue = lambda();
+        break;
+      } catch (e) {}
+    }
+    
+    return returnValue;
+  }
+}
+
+Toggle = {
+  display: function() {
+    for (var i = 0; i < elements.length; i++) {
+      var element = $(elements[i]);
+      element.style.display = 
+        (element.style.display == 'none' ? '' : 'none');
+    }
+  }
+}
+
+/*--------------------------------------------------------------------------*/
+
+function $() {
+  var elements = new Array();
+  
+  for (var i = 0; i < arguments.length; i++) {
+    var element = arguments[i];
+    if (typeof element == 'string')
+      element = document.getElementById(element);
+
+    if (arguments.length == 1) 
+      return element;
+      
+    elements.push(element);
+  }
+  
+  return elements;
+}
+
+function getElementsByClassName(className, element) {
+  var children = (element || document).getElementsByTagName('*');
+  var elements = new Array();
+  
+  for (var i = 0; i < children.length; i++) {
+    var child = children[i];
+    var classNames = child.className.split(' ');
+    for (var j = 0; j < classNames.length; j++) {
+      if (classNames[j] == className) {
+        elements.push(child);
+        break;
+      }
+    }
+  }
+  
+  return elements;
+}
+
+/*--------------------------------------------------------------------------*/
+
+Ajax = {
+  getTransport: function() {
+    return Try.these(
+      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
+      function() {return new ActiveXObject('Microsoft.XMLHTTP')},
+      function() {return new XMLHttpRequest()}
+    ) || false;
+  },
+  
+  emptyFunction: function() {}
+}
+
+Ajax.Base = function() {};
+Ajax.Base.prototype = {
+  setOptions: function(options) {
+    this.options = {
+      method:       'post',
+      asynchronous: true,
+      parameters:   ''
+    }.extend(options || {});
+  }
+}
+
+Ajax.Request = Class.create();
+Ajax.Request.Events = 
+  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
+
+Ajax.Request.prototype = (new Ajax.Base()).extend({
+  initialize: function(url, options) {
+    this.transport = Ajax.getTransport();
+    this.setOptions(options);
+  
+    try {
+      if (this.options.method == 'get')
+        url += '?' + this.options.parameters + '&_=';
+    
+      this.transport.open(this.options.method, url, true);
+      
+      if (this.options.asynchronous) {
+        this.transport.onreadystatechange = this.onStateChange.bind(this);
+        setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
+      }
+              
+      if (this.options.method == 'post') {
+        this.transport.setRequestHeader('Connection', 'close');
+        this.transport.setRequestHeader('Content-type',
+          'application/x-www-form-urlencoded');
+      }
+      
+      this.transport.send(this.options.method == 'post' ? 
+        this.options.parameters + '&_=' : null);
+                      
+    } catch (e) {
+    }    
+  },
+      
+  onStateChange: function() {
+    var readyState = this.transport.readyState;
+    if (readyState != 1)
+      this.respondToReadyState(this.transport.readyState);
+  },
+  
+  respondToReadyState: function(readyState) {
+    var event = Ajax.Request.Events[readyState];
+    (this.options['on' + event] || Ajax.emptyFunction)(this.transport);
+  }
+});
+
+Ajax.Updater = Class.create();
+Ajax.Updater.prototype = (new Ajax.Base()).extend({
+  initialize: function(container, url, options) {
+    this.container = $(container);
+    this.setOptions(options);
+  
+    if (this.options.asynchronous) {
+      this.onComplete = this.options.onComplete;
+      this.options.onComplete = this.updateContent.bind(this);
+    }
+    
+    this.request = new Ajax.Request(url, this.options);
+    
+    if (!this.options.asynchronous)
+      this.updateContent();
+  },
+  
+  updateContent: function() {
+    this.container.innerHTML = this.request.transport.responseText;
+    if (this.onComplete) this.onComplete(this.request);
+  }
+});
+
+/*--------------------------------------------------------------------------*/
+
+Field = {
+  clear: function() {
+    for (var i = 0; i < arguments.length; i++)
+      $(arguments[i]).value = '';
+  },
+
+  focus: function(element) {
+    $(element).focus();
+  },
+  
+  present: function() {
+    for (var i = 0; i < arguments.length; i++)
+      if ($(arguments[i]).value == '') return false;
+    return true;
+  }
+}
+
+/*--------------------------------------------------------------------------*/
+
+Form = {
+  serialize: function(form) {
+    var elements = Form.getElements($(form));
+    var queryComponents = new Array();
+    
+    for (var i = 0; i < elements.length; i++) {
+      var queryComponent = Form.Element.serialize(elements[i]);
+      if (queryComponent)
+        queryComponents.push(queryComponent);
+    }
+    
+    return queryComponents.join('&');
+  },
+  
+  getElements: function(form) {
+    form = $(form);
+    var elements = new Array();
+
+    for (tagName in Form.Element.Serializers) {
+      var tagElements = form.getElementsByTagName(tagName);
+      for (var j = 0; j < tagElements.length; j++)
+        elements.push(tagElements[j]);
+    }
+    return elements;
+  }
+}
+
+Form.Element = {
+  serialize: function(element) {
+    element = $(element);
+    var method = element.tagName.toLowerCase();
+    var parameter = Form.Element.Serializers[method](element);
+    
+    if (parameter)
+      return encodeURIComponent(parameter[0]) + '=' + 
+        encodeURIComponent(parameter[1]);                   
+  },
+  
+  getValue: function(element) {
+    element = $(element);
+    var method = element.tagName.toLowerCase();
+    var parameter = Form.Element.Serializers[method](element);
+    
+    if (parameter) 
+      return parameter[1];
+  }
+}
+
+Form.Element.Serializers = {
+  input: function(element) {
+    switch (element.type.toLowerCase()) {
+      case 'hidden':
+      case 'text':
+        return Form.Element.Serializers.textarea(element);
+      case 'checkbox':  
+      case 'radio':
+        return Form.Element.Serializers.inputSelector(element);
+    }
+  },
+
+  inputSelector: function(element) {
+    if (element.checked)
+      return [element.name, element.value];
+  },
+
+  textarea: function(element) {
+    return [element.name, element.value];
+  },
+
+  select: function(element) {
+    var index = element.selectedIndex;
+    return [element.name, (index >= 0) ? element.options[index].value : ''];
+  }
+}
+
+/*--------------------------------------------------------------------------*/
+
+Abstract.TimedObserver = function() {}
+Abstract.TimedObserver.prototype = {
+  initialize: function(element, frequency, callback) {
+    this.frequency = frequency;
+    this.element   = $(element);
+    this.callback  = callback;
+    
+    this.lastValue = this.getValue();
+    this.registerCallback();
+  },
+  
+  registerCallback: function() {
+    setTimeout(this.onTimerEvent.bind(this), this.frequency * 1000);
+  },
+  
+  onTimerEvent: function() {
+    var value = this.getValue();
+    if (this.lastValue != value) {
+      this.callback(this.element, value);
+      this.lastValue = value;
+    }
+    
+    this.registerCallback();
+  }
+}
+
+Form.Element.Observer = Class.create();
+Form.Element.Observer.prototype = (new Abstract.TimedObserver()).extend({
+  getValue: function() {
+    return Form.Element.getValue(this.element);
+  }
+});
+
+Form.Observer = Class.create();
+Form.Observer.prototype = (new Abstract.TimedObserver()).extend({
+  getValue: function() {
+    return Form.serialize(this.element);
+  }
+});
+