jquery_ui_notes.js

this.headers

this.active.find

this.active.outerHeight()

this.element

this.headers
  .attr('role', 'tab')
  .next()
  .attr('role', 'tabpanel')

$.widget.prototype._setData.apply(this, arguments)

keyCode = $.ui.keyCode

this.headers.index(event.target)

this._clickHandler({target: event.target}, event.target)

typeof selector == "number"

this.headers.filter(":eq("+selector+")")

this.headers.not(this.headers.not(selector))

var o = this.options;

if (o.disabled) return false;

var toHide = this.active.next()

this._toggle(toShow, toHide, data);

toShow = (this.active = $([]));

var clicked = $(event.currentTarget || target);

var clickedIsActive = clicked[0] == this.active[0];

this.running = true

data = {
  options: o,
  newHeader: clickedIsActive && o.collapsible ? $([]) : clicked,
  oldHeader: this.active,
  newContent: clickedIsActive && o.collapsible ? $([]) : toShow.find('> *'),
  oldContent: toHide.find('> *')
},

self = this
var complete = function() { 
  if(!self) return; 
  return self._completed.apply(self, arguments); 
};

this.running = toHide.size() === 0 ? toShow.size() : toHide.size(); //num of things to animate

this._trigger('change', null, this.data);

this.toShow.add(this.toHide);

options.toShow.animate({height: "show"}, options);

options.toHide.filter(":hidden").each(options.complete).end().filter(":visible").animate(...)

options.toShow.css("height", "");