text: /// XXX: make it cross browser
  
  /**
   * make the code below compatible with browsers without
   * an installed firebug like debugger
   */
  if (!window.console || !console.firebug) {
    var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
        "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];
    window.console = {};
    for (var i = 0; i < names.length; ++i)
      window.console[names[i]] = function() {}
  }
  
  /**
   * small helper function to urldecode strings
   */
  jQuery.urldecode = function(x) {
    return decodeURIComponent(x).replace(/\+/g, ' ');
  }
  
  /**
   * small helper function to urlencode strings
   */
  jQuery.urlencode = encodeURIComponent;
  
  /**
   * This function returns the parsed url parameters of the
   * current request. Multiple values per key are supported,
   * it will always return arrays of strings for the value parts.
   */
  jQuery.getQueryParameters = function(s) {
    if (typeof s == 'undefined')
      s = document.location.search;
    var parts = s.substr(s.indexOf('?') + 1).split('&');
    var result = {};
    for (var i = 0; i < parts.length; i++) {
      var tmp = parts[i].split('=', 2);
      var key = jQuery.urldecode(tmp[0]);
      var value = jQuery.urldecode(tmp[1]);
      if (key in result)
        result[key].push(value);
      else
        result[key] = [value];
    }
    return result;
  }
  
  /**
   * small function to check if an array contains
   * a given item.
   */
  jQuery.contains = function(arr, item) {
    for (var i = 0; i < arr.length; i++) {
      if (arr[i] == item)
        return true;
    }
    return false;
  }
  
  /**
   * highlight a given string on a jquery object by wrapping it in
   * span elements with the given class name.
   */
  jQuery.fn.highlightText = function(text, className) {
    function highlight(node) {
      if (node.nodeType == 3) {
        var val = node.nodeValue;
        var pos = val.toLowerCase().indexOf(text);
        if (pos >= 0 && !jQuery.className.has(node.parentNode, className)) {
          var span = document.createElement("span");
          span.className = className;
          span.appendChild(document.createTextNode(val.substr(pos, text.length)));
          node.parentNode.insertBefore(span, node.parentNode.insertBefore(
            document.createTextNode(val.substr(pos + text.length)),
            node.nextSibling));
          node.nodeValue = val.substr(0, pos);
        }
      }
      else if (!jQuery(node).is("button, select, textarea")) {
        jQuery.each(node.childNodes, function() {
          highlight(this)
        });
      }
    }
    return this.each(function() {
      highlight(this);
    });
  }
  
  /**
   * Small JavaScript module for the documentation.
   */
  var Documentation = {
  
    init : function() {
      this.fixFirefoxAnchorBug();
      this.highlightSearchWords();
      this.initModIndex();
    },
  
    /**
     * i18n support
     */
    TRANSLATIONS : {},
    PLURAL_EXPR : function(n) { return n == 1 ? 0 : 1; },
    LOCALE : 'unknown',
  
    // gettext and ngettext don't access this so that the functions
    // can savely bound to a different name (_ = Documentation.gettext)
    gettext : function(string) {
      var translated = Documentation.TRANSLATIONS[string];
      if (typeof translated == 'undefined')
        return string;
      return (typeof translated == 'string') ? translated : translated[0];
    },
  
    ngettext : function(singular, plural, n) {
      var translated = Documentation.TRANSLATIONS[singular];
      if (typeof translated == 'undefined')
        return (n == 1) ? singular : plural;
      return translated[Documentation.PLURALEXPR(n)];
    },
  
    addTranslations : function(catalog) {
      for (var key in catalog.messages)
        this.TRANSLATIONS[key] = catalog.messages[key];
      this.PLURAL_EXPR = new Function('n', 'return +(' + catalog.plural_expr + ')');
      this.LOCALE = catalog.locale;
    },
  
    /**
     * add context elements like header anchor links
     */
    addContextElements : function() {
      $('div[@id] > :header:first').each(function() {
        $('<a class="headerlink">\u00B6</a>').
        attr('href', '#' + this.id).
        attr('title', _('Permalink to this headline')).
        appendTo(this);
      });
      $('dt[@id]').each(function() {
        $('<a class="headerlink">\u00B6</a>').
        attr('href', '#' + this.id).
        attr('title', _('Permalink to this definition')).
        appendTo(this);
      });
    },
  
    /**
     * workaround a firefox stupidity
     */
    fixFirefoxAnchorBug : function() {
      if (document.location.hash && $.browser.mozilla)
        window.setTimeout(function() {
          document.location.href += '';
        }, 10);
    },
  
    /**
     * highlight the search words provided in the url in the text
     */
    highlightSearchWords : function() {
      var params = $.getQueryParameters();
      var terms = (params.highlight) ? params.highlight[0].split(/\s+/) : [];
      if (terms.length) {
        var body = $('div.body');
        window.setTimeout(function() {
          $.each(terms, function() {
            body.highlightText(this.toLowerCase(), 'highlight');
          });
        }, 10);
        $('<li class="highlight-link"><a href="javascript:Documentation.' +
          'hideSearchWords()">' + _('Hide Search Matches') + '</a></li>')
            .appendTo($('.sidebar .this-page-menu'));
      }
    },
  
    /**
     * init the modindex toggle buttons
     */
    initModIndex : function() {
      var togglers = $('img.toggler').click(function() {
        var src = $(this).attr('src');
        var idnum = $(this).attr('id').substr(7);
        console.log($('tr.cg-' + idnum).toggle());
        if (src.substr(-9) == 'minus.png')
          $(this).attr('src', src.substr(0, src.length-9) + 'plus.png');
        else
          $(this).attr('src', src.substr(0, src.length-8) + 'minus.png');
      }).css('display', '');
      if (DOCUMENTATION_OPTIONS.COLLAPSE_MODINDEX) {
          togglers.click();
      }
    },
  
    /**
     * helper function to hide the search marks again
     */
    hideSearchWords : function() {
      $('.sidebar .this-page-menu li.highlight-link').fadeOut(300);
      $('span.highlight').removeClass('highlight');
    },
  
    /**
     * make the url absolute
     */
    makeURL : function(relativeURL) {
      return DOCUMENTATION_OPTIONS.URL_ROOT + '/' + relativeURL;
    },
  
    /**
     * get the current relative url
     */
    getCurrentURL : function() {
      var path = document.location.pathname;
      var parts = path.split(/\//);
      $.each(DOCUMENTATION_OPTIONS.URL_ROOT.split(/\//), function() {
        if (this == '..')
          parts.pop();
      });
      var url = parts.join('/');
      return path.substring(url.lastIndexOf('/') + 1, path.length - 1);
    }
  };
  
  // quick alias for translations
  _ = Documentation.gettext;
  
  $(document).ready(function() {
    Documentation.init();
  });
  