(function($) {

$.fn.expandAll = function(options) {

    var o = $.extend({}, $.fn.expandAll.defaults, options);  

   

    return this.each(function(index) {

        var $$ = $(this), $referent, $sw, $cllps, $tr, container, toggleTxt, toggleClass;

               

        // --- functions:

       (o.switchPosition == 'before') ? ($.fn.findSibling = $.fn.prev, $.fn.insrt = $.fn.before) : ($.fn.findSibling = $.fn.next, $.fn.insrt = $.fn.after);

                   

        // --- var container

        if (this.id.length) { container = '#' + this.id;

        } else if (this.className.length) { container = this.tagName.toLowerCase() + '.' + this.className.split(' ').join('.');

        } else { container = this.tagName.toLowerCase();}

       

        // --- var $referent

        if (o.ref && $$.find(o.ref).length) {

          (o.switchPosition == 'before') ? $referent = $$.find("'" + o.ref + ":first'") : $referent = $$.find("'" + o.ref + ":last'");

        } else { return; }

       

        // end the script if the length of the collapsible element isn't long enough.  

        if (o.cllpsLength && $$.closest(container).find(o.cllpsEl).text().length < o.cllpsLength) {$$.closest(container).find(o.cllpsEl).addClass('dont_touch'); return;}

   

        // --- if expandAll() claims initial state = hidden:

        (o.initTxt == 'show') ? (toggleTxt = o.expTxt, toggleClass='') : (toggleTxt = o.cllpsTxt, toggleClass='open');

        if (o.state == 'hidden') {

          $$.find(o.cllpsEl + ':not(.shown, .dont_touch)').hide().findSibling().find('> a.open').removeClass('open').data('state', 0);

        } else {

          $$.find(o.cllpsEl).show().findSibling().find('> a').addClass('open').data('state', 1);

        }

       

        (o.oneSwitch) ? ($referent.insrt('<p class="switch"><a href="#" class="' + toggleClass + '">' + toggleTxt + '</a></p>')) :

          ($referent.insrt('<p class="switch"><a href="#" class="">' + o.expTxt + '</a>&nbsp;|&nbsp;<a href="#" class="open">' + o.cllpsTxt + '</a></p>'));

 

        // --- var $sw, $cllps, $tr :

        $sw = $referent.findSibling('p').find('a');

        $cllps = $$.closest(container).find(o.cllpsEl).not('.dont_touch');

        $tr = (o.trigger) ? $$.closest(container).find(o.trigger + ' > a') : $$.closest(container).find('.expand > a');

               

        if (o.child) {

          $$.find(o.cllpsEl + '.shown').show().findSibling().find('> a').addClass('open').text(o.cllpsTxt);

          window.$vrbls = { kt1 : o.expTxt, kt2 : o.cllpsTxt };

        }

 

        var scrollElem;

        (typeof scrollableElement == 'function') ? (scrollElem = scrollableElement('html', 'body')) : (scrollElem = 'html, body');

       

        $sw.click(function() {

            var $switch = $(this),

                $c = $switch.closest(container).find(o.cllpsEl +':first'),

                cOffset = $c.offset().top - o.offset;

            if (o.parent) {

              var $swChildren = $switch.parent().nextAll().children('p.switch').find('a');

                  kidTxt1 = $vrbls.kt1, kidTxt2 = $vrbls.kt2,

                  kidTxt = ($switch.text() == o.expTxt) ? kidTxt2 : kidTxt1;

              $swChildren.text(kidTxt);

              if ($switch.text() == o.expTxt) {$swChildren.addClass('open');} else {$swChildren.removeClass('open');}

            }

            if ($switch.text() == o.expTxt) {

              if (o.oneSwitch) {$switch.text(o.cllpsTxt).attr('class', 'open');}

              $tr.addClass('open').data('state', 1);

              $cllps[o.showMethod](o.speed);

            } else {

              if (o.oneSwitch) {$switch.text(o.expTxt).attr('class', '');}

              $tr.removeClass('open').data('state', 0);

              if (o.speed == 0 || o.instantHide) {$cllps.hide();} else {$cllps[o.hideMethod](o.speed);}

              if (o.scroll && cOffset < $(window).scrollTop()) {$(scrollElem).animate({scrollTop: cOffset},600);}

          }

          return false;

        });

        /* -----------------------------------------------

        if (o.localLinks) {

          var localLink = $(container).find(o.localLinks);

          if (localLink.length) {

            // based on http://www.learningjquery.com/2007/10/improved-animated-scrolling-script-for-same-page-links:

            $(localLink).click(function() {

              var $target = $(this.hash);

              $target = $target.length && $target || $('[name=' + this.hash.slice(1) + ']');

              if ($target.length) {

                var tOffset = $target.offset().top;

                $(scrollElem).animate({scrollTop: tOffset},600);

                return false;

              }

            });

          }

        }

        /* -----------------------------------------------

        //http://www.learningjquery.com/2007/10/improved-animated-scrolling-script-for-same-page-links:

        function scrollableElement(els) {

          for (var i = 0, argLength = arguments.length; i < argLength; i++) {

            var el = arguments[i],

                $scrollElement = $(el);

            if ($scrollElement.scrollTop() > 0) {

              return el;

            } else {

              $scrollElement.scrollTop(1);

              var isScrollable = $scrollElement.scrollTop() > 0;

              $scrollElement.scrollTop(0);

              if (isScrollable) {

                return el;

              }

            }

          };

          return [];

        };

      /* --- end of the optional code --- */

$.fn.expandAll.defaults = {

        state : 'hidden', // If 'hidden', the collapsible elements are hidden by default, else they are expanded by default

        initTxt : 'show', // 'show' - if the initial text of the switch is for expanding, 'hide' - if the initial text of the switch is for collapsing

        expTxt : '[Expand All]', // the text of the switch for expanding

        cllpsTxt : '[Collapse All]', // the text of the switch for collapsing

        oneSwitch : true, // true or false - whether both [Expand All] and [Collapse All] are shown, or they swap

        ref : '.expand', // the switch 'Expand All/Collapse All' is inserted in regards to the element specified by 'ref'

        switchPosition: 'before', //'before' or 'after' - specifies the position of the switch 'Expand All/Collapse All' - before or after the collapsible element

        scroll : false, // false or true. If true, the switch 'Expand All/Collapse All' will be dinamically repositioned to remain in view when the collapsible element closes

        offset : 20,

        showMethod : 'slideDown', // 'show', 'slideDown', 'fadeIn', or custom

        hideMethod : 'slideUp', // 'hide', 'slideUp', 'fadeOut', or custom

        speed : 600, // the speed of the animation in m.s. or 'slow', 'normal', 'fast'

        cllpsEl : '.collapse', // the collapsible element

        trigger : '.expand', // if expandAll() is used in conjunction with toggle() - the elements that contain the trigger of the toggle effect on the individual collapsible sections

        localLinks : null, // null or the selector of the same-page links to which we will apply a smooth-scroll function, e.g. 'a.to_top'

        parent : false, // true, false

        child : false, // true, false

        cllpsLength : null, //null, {Number}. If {Number} (e.g. cllpsLength: 200) - if the number of characters inside the "collapsible element" is less than the given {Number}, the element will be visible all the time

        instantHide : false // {true} fixes hiding content inside hidden elements

 

$.fn.toggler = function(options) {

    var o = $.extend({}, $.fn.toggler.defaults, options);

   

    var $this = $(this);

    $this.wrapInner('<a style="display:block" href="#" title="Expand/Collapse" />');

    if (o.initShow) {$(o.initShow).addClass('shown');}

    $this.next(o.cllpsEl + ':not(.shown)').hide();

    return this.each(function() {

      var container;

      (o.container) ? container = o.container : container = 'html';

      if ($this.next('div.shown').length) { $this.closest(container).find('.shown').show().prev().find('a').addClass('open'); }

      $(this).click(function() {

        $(this).find('a').toggleClass('open').end().next(o.cllpsEl)[o.method](o.speed);

        return false;

    });

$.fn.toggler.defaults = {

     cllpsEl : 'div.collapse',

     method : 'slideToggle',

     speed : 'slow',

     container : '', //the common container of all groups with collapsible content (optional)

     initShow : '.shown' //the initially expanded sections (optional)

$.fn.fadeToggle = function(speed, callback) {

    return this.animate({opacity: 'toggle'}, speed, function() {

    if (jQuery.browser.msie) { this.style.removeAttribute('filter'); }

    if (jQuery.isFunction(callback)) { callback(); }

  });

$.fn.slideFadeToggle = function(speed, easing, callback) {

    return this.animate({opacity: 'toggle', height: 'toggle'}, speed, easing, function() {

    if (jQuery.browser.msie) { this.style.removeAttribute('filter'); }

    if (jQuery.isFunction(callback)) { callback(); }

  });

$.fn.slideFadeDown = function(speed, callback) {

  return this.animate({opacity: 'show', height: 'show'}, speed, function() {

    if (jQuery.browser.msie) { this.style.removeAttribute('filter'); }

    if (jQuery.isFunction(callback)) { callback(); }

  });

};

$.fn.slideFadeUp = function(speed, callback) {

  return this.animate({opacity: 'hide', height: 'hide'}, speed, function() {

    if (jQuery.browser.msie) { this.style.removeAttribute('filter'); }

    if (jQuery.isFunction(callback)) { callback(); }

  });

};

})(jQuery);