bootstrap.js

      if (!prev.length) {
        prev = this.$menu.find('li').last()
      }

      prev.addClass('active')
    }

  , listen: function () {
      this.$element
        .on('focus',    $.proxy(this.focus, this))
        .on('blur',     $.proxy(this.blur, this))
        .on('keypress', $.proxy(this.keypress, this))
        .on('keyup',    $.proxy(this.keyup, this))

      if (this.eventSupported('keydown')) {
        this.$element.on('keydown', $.proxy(this.keydown, this))
      }

      this.$menu
        .on('click', $.proxy(this.click, this))
        .on('mouseenter', 'li', $.proxy(this.mouseenter, this))
        .on('mouseleave', 'li', $.proxy(this.mouseleave, this))
    }

  , eventSupported: function(eventName) {
      var isSupported = eventName in this.$element
      if (!isSupported) {
        this.$element.setAttribute(eventName, 'return;')
        isSupported = typeof this.$element[eventName] === 'function'
      }
      return isSupported
    }

  , move: function (e) {
      if (!this.shown) return

      switch(e.keyCode) {
        case 9: // tab
        case 13: // enter
        case 27: // escape
          e.preventDefault()
          break

        case 38: // up arrow
          e.preventDefault()
          this.prev()
          break

        case 40: // down arrow
          e.preventDefault()
          this.next()
          break
      }

      e.stopPropagation()
    }

  , keydown: function (e) {
      this.suppressKeyPressRepeat = ~$.inArray(e.keyCode, [40,38,9,13,27])
      this.move(e)
    }

  , keypress: function (e) {
      if (this.suppressKeyPressRepeat) return
      this.move(e)
    }

  , keyup: function (e) {
      switch(e.keyCode) {
        case 40: // down arrow
        case 38: // up arrow
        case 16: // shift
        case 17: // ctrl
        case 18: // alt
          break

        case 9: // tab
        case 13: // enter
          if (!this.shown) return
          this.select()
          break

        case 27: // escape
          if (!this.shown) return
          this.hide()
          break

        default:
          this.lookup()
      }

      e.stopPropagation()
      e.preventDefault()
  }

  , focus: function (e) {
      this.focused = true
    }

  , blur: function (e) {
      this.focused = false
      if (!this.mousedover && this.shown) this.hide()
    }

  , click: function (e) {
      e.stopPropagation()
      e.preventDefault()
      this.select()
      this.$element.focus()
    }

  , mouseenter: function (e) {
      this.mousedover = true
      this.$menu.find('.active').removeClass('active')
      $(e.currentTarget).addClass('active')
    }

  , mouseleave: function (e) {
      this.mousedover = false
      if (!this.focused && this.shown) this.hide()
    }

  }


  /* TYPEAHEAD PLUGIN DEFINITION
   * =========================== */

  var old = $.fn.typeahead

  $.fn.typeahead = function (option) {
    return this.each(function () {
      var $this = $(this)
        , data = $this.data('typeahead')
        , options = typeof option == 'object' && option
      if (!data) $this.data('typeahead', (data = new Typeahead(this, options)))
      if (typeof option == 'string') data[option]()
    })
  }

  $.fn.typeahead.defaults = {
    source: []
  , items: 8
  , menu: '<ul class="typeahead dropdown-menu"></ul>'
  , item: '<li><a href="#"></a></li>'
  , minLength: 1
  }

  $.fn.typeahead.Constructor = Typeahead


 /* TYPEAHEAD NO CONFLICT
  * =================== */

  $.fn.typeahead.noConflict = function () {
    $.fn.typeahead = old
    return this
  }


 /* TYPEAHEAD DATA-API
  * ================== */

  $(document).on('focus.typeahead.data-api', '[data-provide="typeahead"]', function (e) {
    var $this = $(this)
    if ($this.data('typeahead')) return
    $this.typeahead($this.data())
  })

}(window.jQuery);
/* ==========================================================
 * bootstrap-affix.js v3.0.0
 * http://twitter.github.com/bootstrap/javascript.html#affix
 * ==========================================================
 * Copyright 2012 Twitter, 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.
 * ========================================================== */


!function ($) {

  "use strict"; // jshint ;_;


 /* AFFIX CLASS DEFINITION
  * ====================== */

  var Affix = function (element, options) {
    this.options = $.extend({}, $.fn.affix.defaults, options)
    this.$window = $(window)
      .on('scroll.affix.data-api', $.proxy(this.checkPosition, this))
      .on('click.affix.data-api',  $.proxy(function () { setTimeout($.proxy(this.checkPosition, this), 1) }, this))
    this.$element = $(element)
    this.checkPosition()
  }

  Affix.prototype.checkPosition = function () {
    if (!this.$element.is(':visible')) return

    var scrollHeight = $(document).height()
      , scrollTop = this.$window.scrollTop()
      , position = this.$element.offset()
      , offset = this.options.offset
      , offsetBottom = offset.bottom
      , offsetTop = offset.top
      , reset = 'affix affix-top affix-bottom'
      , affix

    if (typeof offset != 'object') offsetBottom = offsetTop = offset
    if (typeof offsetTop == 'function') offsetTop = offset.top()
    if (typeof offsetBottom == 'function') offsetBottom = offset.bottom()

    affix = this.unpin != null && (scrollTop + this.unpin <= position.top) ?
      false    : offsetBottom != null && (position.top + this.$element.height() >= scrollHeight - offsetBottom) ?
      'bottom' : offsetTop != null && scrollTop <= offsetTop ?
      'top'    : false

    if (this.affixed === affix) return

    this.affixed = affix
    this.unpin = affix == 'bottom' ? position.top - scrollTop : null

    this.$element.removeClass(reset).addClass('affix' + (affix ? '-' + affix : ''))
  }


 /* AFFIX PLUGIN DEFINITION
  * ======================= */

  var old = $.fn.affix

  $.fn.affix = function (option) {
    return this.each(function () {
      var $this = $(this)
        , data = $this.data('affix')
        , options = typeof option == 'object' && option
      if (!data) $this.data('affix', (data = new Affix(this, options)))
      if (typeof option == 'string') data[option]()
    })
  }

  $.fn.affix.Constructor = Affix

  $.fn.affix.defaults = {
    offset: 0
  }


 /* AFFIX NO CONFLICT
  * ================= */

  $.fn.affix.noConflict = function () {
    $.fn.affix = old
    return this
  }


 /* AFFIX DATA-API
  * ============== */

  $(window).on('load', function () {
    $('[data-spy="affix"]').each(function () {
      var $spy = $(this)
        , data = $spy.data()

      data.offset = data.offset || {}

      data.offsetBottom && (data.offset.bottom = data.offsetBottom)
      data.offsetTop && (data.offset.top = data.offsetTop)

      $spy.affix(data)
    })
  })


}(window.jQuery);