text: /**
     Copyright (c) 2005, Brad Neuberg, bkn3@columbia.edu
     http://codinginparadise.org
  
     Permission is hereby granted, free of charge, to any person obtaining
     a copy of this software and associated documentation files (the "Software"),
     to deal in the Software without restriction, including without limitation
     the rights to use, copy, modify, merge, publish, distribute, sublicense,
     and/or sell copies of the Software, and to permit persons to whom the
     Software is furnished to do so, subject to the following conditions:
  
     The above copyright notice and this permission notice shall be
     included in all copies or substantial portions of the Software.
  
     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
     CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
     OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
     THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  
     The JSON class near the end of this file is
     Copyright 2005, JSON.org
  */
  
  /** An object that provides DHTML history, history data, and bookmarking
      for AJAX applications. */
  window.dhtmlHistory = {
     /** Initializes our DHTML history. You should
         call this after the page is finished loading. */
     /** public */ initialize: function() {
        // only Internet Explorer needs to be explicitly initialized;
        // other browsers don't have its particular behaviors.
        // Basicly, IE doesn't autofill form data until the page
        // is finished loading, which means historyStorage won't
        // work until onload has been fired.
        if (this.isInternetExplorer() == false) {
           return;
        }
  
        // if this is the first time this page has loaded...
        if (historyStorage.hasKey("DhtmlHistory_pageLoaded") == false) {
           this.fireOnNewListener = false;
           this.firstLoad = true;
           historyStorage.put("DhtmlHistory_pageLoaded", true);
        }
        // else if this is a fake onload event
        else {
           this.fireOnNewListener = true;
           this.firstLoad = false;
        }
     },
  
     /** Adds a history change listener. Note that
         only one listener is supported at this
         time. */
     /** public */ addListener: function(callback) {
        this.listener = callback;
  
        // if the page was just loaded and we
        // should not ignore it, fire an event
        // to our new listener now
        if (this.fireOnNewListener == true) {
           this.fireHistoryEvent(this.currentLocation);
           this.fireOnNewListener = false;
        }
     },
  
     /** public */ add: function(newLocation, historyData) {
        // most browsers require that we wait a certain amount of time before changing the
        // location, such as 200 milliseconds; rather than forcing external callers to use
        // window.setTimeout to account for this to prevent bugs, we internally handle this
        // detail by using a 'currentWaitTime' variable and have requests wait in line
        var self = this;
        var addImpl = function() {
           // indicate that the current wait time is now less
           if (self.currentWaitTime > 0)
              self.currentWaitTime = self.currentWaitTime - self.WAIT_TIME;
  
           // remove any leading hash symbols on newLocation
           newLocation = self.removeHash(newLocation);
  
           // IE has a strange bug; if the newLocation
           // is the same as _any_ preexisting id in the
           // document, then the history action gets recorded
           // twice; throw a programmer exception if there is
           // an element with this ID
           var idCheck = $(newLocation);
           if (idCheck != undefined || idCheck != null) {
              var message =
                 "Exception: History locations can not have "
                 + "the same value as _any_ id's "
                 + "that might be in the document, "
                 + "due to a bug in Internet "
                 + "Explorer; please ask the "
                 + "developer to choose a history "
                 + "location that does not match "
                 + "any HTML id's in this "
                 + "document. The following ID "
                 + "is already taken and can not "
                 + "be a location: "
                 + newLocation;
  
              throw message;
           }
  
           // store the history data into history storage
           historyStorage.put(newLocation, historyData);
  
           // indicate to the browser to ignore this upcomming
           // location change
           self.ignoreLocationChange = true;
  
           // indicate to IE that this is an atomic location change
           // block
           this.ieAtomicLocationChange = true;
  
           // save this as our current location
           self.currentLocation = newLocation;
  
           // change the browser location
           window.location.hash = newLocation;
  
           // change the hidden iframe's location if on IE
           if (self.isInternetExplorer())
              self.iframe.src = "/blank.html?" + newLocation;
  
           // end of atomic location change block
           // for IE
           this.ieAtomicLocationChange = false;
        };
  
        // now execute this add request after waiting a certain amount of time, so as to
        // queue up requests
        window.setTimeout(addImpl, this.currentWaitTime);
  
        // indicate that the next request will have to wait for awhile
        this.currentWaitTime = this.currentWaitTime + this.WAIT_TIME;
     },
  
     /** public */ isFirstLoad: function() {
        if (this.firstLoad == true) {
           return true;
        }
        else {
           return false;
        }
     },
  
     /** public */ isInternational: function() {
        return false;
     },
  
     /** public */ getVersion: function() {
        return "0.05";
     },
  
     /** Gets the current hash value that is in the browser's
         location bar, removing leading # symbols if they are present. */
     /** public */ getCurrentLocation: function() {
        var currentLocation = escape(this.removeHash(window.location.hash));
  
        return currentLocation;
     },
  
  
  
  
  
     /** Our current hash location, without the "#" symbol. */
     /** private */ currentLocation: null,
  
     /** Our history change listener. */
     /** private */ listener: null,
  
     /** A hidden IFrame we use in Internet Explorer to detect history
         changes. */
     /** private */ iframe: null,
  
     /** Indicates to the browser whether to ignore location changes. */
     /** private */ ignoreLocationChange: null,
  
     /** The amount of time in milliseconds that we should wait between add requests.
         Firefox is okay with 200 ms, but Internet Explorer needs 400. */
     /** private */ WAIT_TIME: 200,
  
     /** The amount of time in milliseconds an add request has to wait in line before being
         run on a window.setTimeout. */
     /** private */ currentWaitTime: 0,
  
     /** A flag that indicates that we should fire a history change event
         when we are ready, i.e. after we are initialized and
         we have a history change listener. This is needed due to
         an edge case in browsers other than Internet Explorer; if
         you leave a page entirely then return, we must fire this
         as a history change event. Unfortunately, we have lost
         all references to listeners from earlier, because JavaScript
         clears out. */
     /** private */ fireOnNewListener: null,
  
     /** A variable that indicates whether this is the first time
         this page has been loaded. If you go to a web page, leave
         it for another one, and then return, the page's onload
         listener fires again. We need a way to differentiate
         between the first page load and subsequent ones.
         This variable works hand in hand with the pageLoaded
         variable we store into historyStorage.*/
     /** private */ firstLoad: null,
  
     /** A variable to handle an important edge case in Internet
         Explorer. In IE, if a user manually types an address into
         their browser's location bar, we must intercept this by
         continiously checking the location bar with an timer
         interval. However, if we manually change the location
         bar ourselves programmatically, when using our hidden
         iframe, we need to ignore these changes. Unfortunately,
         these changes are not atomic, so we surround them with
         the variable 'ieAtomicLocationChange', that if true,
         means we are programmatically setting the location and
         should ignore this atomic chunked change. */
     /** private */ ieAtomicLocationChange: null,
  
     /** Creates the DHTML history infrastructure. */
     /** private */ create: function() {
        // get our initial location
        var initialHash = this.getCurrentLocation();
  
        // save this as our current location
        this.currentLocation = initialHash;
  
        // write out a hidden iframe for IE and
        // set the amount of time to wait between add() requests
        if (this.isInternetExplorer()) {
           document.write("<iframe style='border: 0px; width: 1px; "
                                 + "height: 1px; position: absolute; bottom: 0px; "
                                 + "right: 0px; visibility: visible;' "
                                 + "name='DhtmlHistoryFrame' id='DhtmlHistoryFrame' "
                                 + "src='/blank.html?" + initialHash + "'>"
                                 + "</iframe>");
           // wait 400 milliseconds between history
           // updates on IE, versus 200 on Firefox
           this.WAIT_TIME = 400;
        }
  
        // add an unload listener for the page; this is
        // needed for Firefox 1.5+ because this browser caches all
        // dynamic updates to the page, which can break some of our
        // logic related to testing whether this is the first instance
        // a page has loaded or whether it is being pulled from the cache
        var self = this;
        window.onunload = function() {
           self.firstLoad = null;
        };
  
        // determine if this is our first page load;
        // for Internet Explorer, we do this in
        // this.iframeLoaded(), which is fired on
        // page load. We do it there because
        // we have no historyStorage at this point
        // in IE, which only exists after the page
        // is finished loading for that browser
        if (this.isInternetExplorer() == false) {
           if (historyStorage.hasKey("DhtmlHistory_pageLoaded") == false) {
              this.ignoreLocationChange = true;
              this.firstLoad = true;
              historyStorage.put("DhtmlHistory_pageLoaded", true);
           }
           else {
              // indicate that we want to pay attention
              // to this location change
              this.ignoreLocationChange = false;
              // For browser's other than IE, fire
              // a history change event; on IE,
              // the event will be thrown automatically
              // when it's hidden iframe reloads
              // on page load.
              // Unfortunately, we don't have any
              // listeners yet; indicate that we want
              // to fire an event when a listener
              // is added.
              this.fireOnNewListener = true;
           }
        }
        else { // Internet Explorer
           // the iframe will get loaded on page
           // load, and we want to ignore this fact
           this.ignoreLocationChange = true;
        }
  
        if (this.isInternetExplorer()) {
              this.iframe = $("DhtmlHistoryFrame");
        }
  
        // other browsers can use a location handler that checks
        // at regular intervals as their primary mechanism;
        // we use it for Internet Explorer as well to handle
        // an important edge case; see checkLocation() for
        // details
        var self = this;
        var locationHandler = function() {
           self.checkLocation();
        };
        setInterval(locationHandler, 100);
     },
  
     /** Notify the listener of new history changes. */
     /** private */ fireHistoryEvent: function(newHash) {
        // extract the value from our history storage for
        // this hash
        var historyData = historyStorage.get(newHash);
  
        // call our listener
        this.listener.call(null, newHash, historyData);
     },
  
     /** Sees if the browsers has changed location.  This is the primary history mechanism
         for Firefox. For Internet Explorer, we use this to handle an important edge case:
         if a user manually types in a new hash value into their Internet Explorer location
         bar and press enter, we want to intercept this and notify any history listener. */
     /** private */ checkLocation: function() {
        // ignore any location changes that we made ourselves
        // for browsers other than Internet Explorer
        if (this.isInternetExplorer() == false
           && this.ignoreLocationChange == true) {
           this.ignoreLocationChange = false;
           return;
        }
  
        // if we are dealing with Internet Explorer
        // and we are in the middle of making a location
        // change from an iframe, ignore it
        if (this.isInternetExplorer() == false
            && this.ieAtomicLocationChange == true) {
           return;
        }
  
        // get hash location
        var hash = this.getCurrentLocation();
  
        // see if there has been a change
        if (hash == this.currentLocation)
           return;
  
        // on Internet Explorer, we need to intercept users manually
        // entering locations into the browser; we do this by comparing
        // the browsers location against the iframes location; if they
        // differ, we are dealing with a manual event and need to
        // place it inside our history, otherwise we can return
        this.ieAtomicLocationChange = true;
  
        if (this.isInternetExplorer()
            && this.getIFrameHash() != hash) {
           this.iframe.src = "/blank.html?" + hash;
        }
        else if (this.isInternetExplorer()) {
           // the iframe is unchanged
           return;
        }
  
        // save this new location
        this.currentLocation = hash;
  
        this.ieAtomicLocationChange = false;
  
        // notify listeners of the change
        this.fireHistoryEvent(hash);
     },
  
     /** Gets the current location of the hidden IFrames
         that is stored as history. For Internet Explorer. */
     /** private */ getIFrameHash: function() {
        // get the new location
        var historyFrame = $("DhtmlHistoryFrame");
        var doc = historyFrame.contentWindow.document;
        var hash = new String(doc.location.search);
  
        if (hash.length == 1 && hash.charAt(0) == "?")
           hash = "";
        else if (hash.length >= 2 && hash.charAt(0) == "?")
           hash = hash.substring(1);
  
  
        return hash;
     },
  
     /** Removes any leading hash that might be on a location. */
     /** private */ removeHash: function(hashValue) {
        if (hashValue == null || hashValue == undefined)
           return null;
        else if (hashValue == "")
           return "";
        else if (hashValue.length == 1 && hashValue.charAt(0) == "#")
           return "";
        else if (hashValue.length > 1 && hashValue.charAt(0) == "#")
           return hashValue.substring(1);
        else
           return hashValue;
     },
  
     /** For IE, says when the hidden iframe has finished loading. */
     /** private */ iframeLoaded: function(newLocation) {
        // ignore any location changes that we made ourselves
        if (this.ignoreLocationChange == true) {
           this.ignoreLocationChange = false;
           return;
        }
  
        // get the new location
        var hash = new String(newLocation.search);
        if (hash.length == 1 && hash.charAt(0) == "?")
           hash = "";
        else if (hash.length >= 2 && hash.charAt(0) == "?")
           hash = hash.substring(1);
  
        // move to this location in the browser location bar
        // if we are not dealing with a page load event
        if (this.pageLoadEvent != true) {
           window.location.hash = hash;
        }
  
        // notify listeners of the change
        this.fireHistoryEvent(hash);
     },
  
     /** Determines if this is Internet Explorer. */
     /** private */ isInternetExplorer: function() {
        var userAgent = navigator.userAgent.toLowerCase();
        if (document.all && userAgent.indexOf('msie')!=-1) {
           return true;
        }
        else {
           return false;
        }
     }
  };
  
  /** An object that uses a hidden form to store history state
      across page loads. The chief mechanism for doing so is using
      the fact that browser's save the text in form data for the
      life of the browser and cache, which means the text is still
      there when the user navigates back to the page. See
      http://codinginparadise.org/weblog/2005/08/ajax-tutorial-saving-session-across.html
      for full details. */
  window.historyStorage = {
     /** If true, we are debugging and show the storage textfield. */
     /** public */ debugging: false,
  
     /** Our hash of key name/values. */
     /** private */ storageHash: new Object(),
  
     /** If true, we have loaded our hash table out of the storage form. */
     /** private */ hashLoaded: false,
  
     /** public */ put: function(key, value) {
         this.assertValidKey(key);
  
         // if we already have a value for this,
         // remove the value before adding the
         // new one
         if (this.hasKey(key)) {
           this.remove(key);
         }
  
         // store this new key
         this.storageHash[key] = value;
  
         // save and serialize the hashtable into the form
         this.saveHashTable();
     },
  
     /** public */ get: function(key) {
        this.assertValidKey(key);
  
        // make sure the hash table has been loaded
        // from the form
        this.loadHashTable();
  
        var value = this.storageHash[key];
  
        if (value == undefined)
           return null;
        else
           return value;
     },
  
     /** public */ remove: function(key) {
        this.assertValidKey(key);
  
        // make sure the hash table has been loaded
        // from the form
        this.loadHashTable();
  
        // delete the value
        delete this.storageHash[key];
  
        // serialize and save the hash table into the
        // form
        this.saveHashTable();
     },
  
     /** Clears out all saved data. */
     /** public */ reset: function() {
        this.storageField.value = "";
        this.storageHash = new Object();
     },
  
     /** public */ hasKey: function(key) {
        this.assertValidKey(key);
  
        // make sure the hash table has been loaded
        // from the form
        this.loadHashTable();
  
        if (typeof this.storageHash[key] == "undefined")
           return false;
        else
           return true;
     },
  
     /** public */ isValidKey: function(key) {
        // allow all strings, since we don't use XML serialization
        // format anymore
        return (typeof key == "string");
     },
  
     /** A reference to our textarea field. */
     /** private */ storageField: null,
  
     /** private */ init: function() {
        /** simplified newContent from <div><form><input/></form></div> to fix an IE display glitch */
        var newContent = "<input type='text' id='historyStorageField' name='historyStorageField' style='display: none;'/>";
        document.write(newContent);
  
        this.storageField = $("historyStorageField");
     },
  
     /** Asserts that a key is valid, throwing
         an exception if it is not. */
     /** private */ assertValidKey: function(key) {
        if (this.isValidKey(key) == false) {
           throw "Please provide a valid key for "
                 + "window.historyStorage, key= "
                 + key;
         }
     },
  
     /** Loads the hash table up from the form. */
     /** private */ loadHashTable: function() {
        if (this.hashLoaded == false) {
           // get the hash table as a serialized
           // string
           var serializedHashTable = this.storageField.value;
  
           if (serializedHashTable != "" &&
               serializedHashTable != null) {
              // destringify the content back into a
              // real JavaScript object
              this.storageHash = eval('(' + serializedHashTable + ')');
           }
  
           this.hashLoaded = true;
        }
     },
  
     /** Saves the hash table into the form. */
     /** private */ saveHashTable: function() {
        this.loadHashTable();
  
        // serialized the hash table
        var serializedHashTable = JSON.stringify(this.storageHash);
  
        // save this value
        this.storageField.value = serializedHashTable;
     }
  };
  
  /** The JSON class is copyright 2005 JSON.org. */
  Array.prototype.______array = '______array';
  
  var JSON = {
      org: 'http://www.JSON.org',
      copyright: '(c)2005 JSON.org',
      license: 'http://www.crockford.com/JSON/license.html',
  
      stringify: function (arg) {
          var c, i, l, s = '', v;
  
          switch (typeof arg) {
          case 'object':
              if (arg) {
                  if (arg.______array == '______array') {
                      for (i = 0; i < arg.length; ++i) {
                          v = this.stringify(arg[i]);
                          if (s) {
                              s += ',';
                          }
                          s += v;
                      }
                      return '[' + s + ']';
                  } else if (typeof arg.toString != 'undefined') {
                      for (i in arg) {
                          v = arg[i];
                          if (typeof v != 'undefined' && typeof v != 'function') {
                              v = this.stringify(v);
                              if (s) {
                                  s += ',';
                              }
                              s += this.stringify(i) + ':' + v;
                          }
                      }
                      return '{' + s + '}';
                  }
              }
              return 'null';
          case 'number':
              return isFinite(arg) ? String(arg) : 'null';
          case 'string':
              l = arg.length;
              s = '"';
              for (i = 0; i < l; i += 1) {
                  c = arg.charAt(i);
                  if (c >= ' ') {
                      if (c == '\\' || c == '"') {
                          s += '\\';
                      }
                      s += c;
                  } else {
                      switch (c) {
                          case '\b':
                              s += '\\b';
                              break;
                          case '\f':
                              s += '\\f';
                              break;
                          case '\n':
                              s += '\\n';
                              break;
                          case '\r':
                              s += '\\r';
                              break;
                          case '\t':
                              s += '\\t';
                              break;
                          default:
                              c = c.charCodeAt();
                              s += '\\u00' + Math.floor(c / 16).toString(16) +
                                  (c % 16).toString(16);
                      }
                  }
              }
              return s + '"';
          case 'boolean':
              return String(arg);
          default:
              return 'null';
          }
      },
      parse: function (text) {
          var at = 0;
          var ch = ' ';
  
          function error(m) {
              throw {
                  name: 'JSONError',
                  message: m,
                  at: at - 1,
                  text: text
              };
          }
  
          function next() {
              ch = text.charAt(at);
              at += 1;
              return ch;
          }
  
          function white() {
              while (ch != '' && ch <= ' ') {
                  next();
              }
          }
  
          function str() {
              var i, s = '', t, u;
  
              if (ch == '"') {
  outer:          while (next()) {
                      if (ch == '"') {
                          next();
                          return s;
                      } else if (ch == '\\') {
                          switch (next()) {
                          case 'b':
                              s += '\b';
                              break;
                          case 'f':
                              s += '\f';
                              break;
                          case 'n':
                              s += '\n';
                              break;
                          case 'r':
                              s += '\r';
                              break;
                          case 't':
                              s += '\t';
                              break;
                          case 'u':
                              u = 0;
                              for (i = 0; i < 4; i += 1) {
                                  t = parseInt(next(), 16);
                                  if (!isFinite(t)) {
                                      break outer;
                                  }
                                  u = u * 16 + t;
                              }
                              s += String.fromCharCode(u);
                              break;
                          default:
                              s += ch;
                          }
                      } else {
                          s += ch;
                      }
                  }
              }
              error("Bad string");
          }
  
          function arr() {
              var a = [];
  
              if (ch == '[') {
                  next();
                  white();
                  if (ch == ']') {
                      next();
                      return a;
                  }
                  while (ch) {
                      a.push(val());
                      white();
                      if (ch == ']') {
                          next();
                          return a;
                      } else if (ch != ',') {
                          break;
                      }
                      next();
                      white();
                  }
              }
              error("Bad array");
          }
  
          function obj() {
              var k, o = {};
  
              if (ch == '{') {
                  next();
                  white();
                  if (ch == '}') {
                      next();
                      return o;
                  }
                  while (ch) {
                      k = str();
                      white();
                      if (ch != ':') {
                          break;
                      }
                      next();
                      o[k] = val();
                      white();
                      if (ch == '}') {
                          next();
                          return o;
                      } else if (ch != ',') {
                          break;
                      }
                      next();
                      white();
                  }
              }
              error("Bad object");
          }
  
          function num() {
              var n = '', v;
              if (ch == '-') {
                  n = '-';
                  next();
              }
              while (ch >= '0' && ch <= '9') {
                  n += ch;
                  next();
              }
              if (ch == '.') {
                  n += '.';
                  while (next() && ch >= '0' && ch <= '9') {
                      n += ch;
                  }
              }
              if (ch == 'e' || ch == 'E') {
                  n += 'e';
                  next();
                  if (ch == '-' || ch == '+') {
                      n += ch;
                      next();
                  }
                  while (ch >= '0' && ch <= '9') {
                      n += ch;
                      next();
                  }
              }
              v = +n;
              if (!isFinite(v)) {
                  error("Bad number");
              } else {
                  return v;
              }
          }
  
          function word() {
              switch (ch) {
                  case 't':
                      if (next() == 'r' && next() == 'u' && next() == 'e') {
                          next();
                          return true;
                      }
                      break;
                  case 'f':
                      if (next() == 'a' && next() == 'l' && next() == 's' &&
                              next() == 'e') {
                          next();
                          return false;
                      }
                      break;
                  case 'n':
                      if (next() == 'u' && next() == 'l' && next() == 'l') {
                          next();
                          return null;
                      }
                      break;
              }
              error("Syntax error");
          }
  
          function val() {
              white();
              switch (ch) {
                  case '{':
                      return obj();
                  case '[':
                      return arr();
                  case '"':
                      return str();
                  case '-':
                      return num();
                  default:
                      return ch >= '0' && ch <= '9' ? num() : word();
              }
          }
  
          return val();
      }
  };
  
  /** QueryString Object from http://adamv.com/dev/javascript/querystring */
  /* Client-side access to querystring name=value pairs
  	Version 1.2.3
  	22 Jun 2005
  	Adam Vandenberg
  */
  function Querystring(qs) { // optionally pass a querystring to parse
  	this.params = new Object()
  	this.get=Querystring_get
  
  	if (qs == null)
  		qs=location.search.substring(1,location.search.length)
  
  	if (qs.length == 0) return
  
  // Turn <plus> back to <space>
  // See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1
  	qs = qs.replace(/\+/g, ' ')
  	// added by Scott Rutherford, change all &amp; to &
  	qs = qs.replace(/&amp;/g, '&')
  	var args = qs.split('&') // parse out name/value pairs separated via &
  
  // split out each name=value pair
  	for (var i=0;i<args.length;i++) {
  		var value;
  		var pair = args[i].split('=')
  		var name = unescape(pair[0])
  
  		if (pair.length == 2)
  			value = unescape(pair[1])
  		else
  			value = name
  
  		this.params[name] = value
  	}
  }
  
  function Querystring_get(key, default_) {
  	// This silly looking line changes UNDEFINED to NULL
  	if (default_ == null) default_ = null;
  
  	var value=this.params[key]
  	if (value==null) value=default_;
  
  	return value
  }
  
  /** ADDED BY SCOTT RUTHERFORD, COMINDED July 2006 scott@cominded */
  /** Initialize all of our objects now. */
  window.historyStorage.init();
  window.dhtmlHistory.create();
  
  /** Create init methods for ActiveScaffold */
  function initialize() {
    // initialize our DHTML history
    dhtmlHistory.initialize();
    // subscribe to DHTML history change
    // events
    dhtmlHistory.addListener(handleHistoryChange);
  }
  
  /** Our callback to receive history
      change events. */
  function handleHistoryChange(pageId, pageData) {
    if (!pageData) return;
    var info = pageId.split(':');
    var id = info[0];
    pageData += '&_method=get';
    new Ajax.Updater(id+'-content', pageData, {asynchronous:true, evalScripts:true, onLoading:function(request){Element.show(id+'-pagination-loading-indicator');}});
  }
  
  /** set onload handler */
  Event.observe(window, 'load', initialize, false);
  