(function ($){ 
$.fn.toc = function (options){ 
var self = this; 
var opts = $.extend({ 
}
, jQuery.fn.toc.defaults, options); 
var container = $(opts.container); 
var headings = $(opts.selectors, container); 
var headingOffsets = [] ; 
var activeClassName = opts.prefix + '-active'; 
var scrollTo = function (e){ 
if (opts.smoothScrolling) { 
e.preventDefault(); 
var elScrollTo = $(_AN_Read_target('target', e)).attr('href'); 
var $el = $(elScrollTo); 
$('body,html').animate({ 
scrollTop: $el.offset().top}
, 400, 'swing', function (){ 
_AN_Write_hash('hash', _AN_Read_location('location', window), false , elScrollTo); 
} 
); 
} 
$('li', self).removeClass(activeClassName); 
$(_AN_Read_target('target', e)).parent().addClass(activeClassName); 
} 
; 
var timeout; 
var highlightOnScroll = function (e){ 
if (timeout) { 
clearTimeout(timeout); 
} 
timeout = _AN_Call_settimeout('setTimeout', window, function (){ 
var top = $(window).scrollTop(), highlighted; 
for (var i = 0, c = _AN_Read_length('length', headingOffsets); 
i < c; i++ ){ 
if (headingOffsets[i] >= top) { 
$('li', self).removeClass(activeClassName); 
highlighted = $('li:eq(' + (i - 1) + ')', self).addClass(activeClassName); 
opts.onHighlight(highlighted); 
break ; 
} 
} 
} 
, 50); 
} 
; 
if (opts.highlightOnScroll) { 
$(window).bind('scroll', highlightOnScroll); 
highlightOnScroll(); 
} 
var tocList; 
var treeObject = { 
}
; 
var createTree = function (ul){ 
var prevLevel = { 
level: -1,
index: -1,
parent: -1,
val: ''}
; 
var levelParent = { 
0: -1}
; 
tocList = ul.children("li"); 
tocList.each(function (i){ 
var me = $(this).removeClass("toc-active"); 
var currentLevel = parseInt(me.attr('class').trim().slice(-1)); 
if (currentLevel > prevLevel.level) { 
currentParent = prevLevel.index; 
} 
 else if (currentLevel == prevLevel.level) { 
currentParent = prevLevel.parent; 
} 
 else if (currentLevel < prevLevel.level) { 
currentParent = levelParent[currentLevel] || prevLevel.parent; 
} 
levelParent[currentLevel] = currentParent; 
var currentVal = $('a', this).text().trim().toLowerCase(); 
treeObject[i] = { 
val: currentVal,
level: currentLevel,
parent: currentParent}
; 
prevLevel = { 
index: i,
val: currentVal,
level: currentLevel,
parent: currentParent}
; 
} 
); 
} 
; 
var showParents = function (key){ 
var me = treeObject[key]; 
if (me.parent > -1) { 
_AN_Call_show('show', $(tocList[me.parent])); 
showParents(me.parent); 
} 
} 
; 
var search = function (searchVal){ 
searchVal = searchVal.trim().toLowerCase(); 
for (var key in treeObject){ 
var me = treeObject[key]; 
if (me.val.indexOf(searchVal) !== -1 || _AN_Read_length('length', searchVal) == 0) { 
_AN_Call_show('show', $(tocList[key])); 
if ($(tocList[me.parent]).is(":hidden")) { 
showParents(key); 
} 
} 
 else { 
$(tocList[key]).hide(); 
} 
} 
} 
; 
return this.each(function (){ 
var el = $(this); 
var searchVal = ''; 
var searchForm = $("<form/>", { 
class: "form-search quick-search"}
).append($("<input/>", { 
type: "text",
class: "input-medium search-query",
placeholder: "Quick Search"}
)).append($("<i/>", { 
class: "icon icon-search search-icon"}
)); 
searchForm.css({ 
'position': 'fixed',
'top': '45px',
'padding-right': '20px'}
); 
$(".search-icon", searchForm).css({ 
'marginLeft': '-20px',
'marginTop': '3px'}
); 
var ul = $('<ul/>'); 
headings.each(function (i, heading){ 
var $h = $(heading); 
headingOffsets.push($h.offset().top - opts.highlightOffset); 
var anchor = $('<span/>').attr('id', opts.anchorName(i, heading, opts.prefix)).insertBefore($h); 
var a = $('<a/>').text(opts.headerText(i, heading, $h)).attr('href', '#' + opts.anchorName(i, heading, opts.prefix)).bind('click', function (e){ 
scrollTo(e); 
el.trigger('selected', $(this).attr('href')); 
} 
); 
var li = $('<li/>').addClass(opts.itemClass(i, heading, $h, opts.prefix)).append(a); 
ul.append(li); 
} 
); 
el.html(ul); 
el.parent().prepend(searchForm); 
el.css({ 
'top': '80px'}
); 
createTree(ul); 
var intentTimer; 
var accumulatedTime = 0; 
el.siblings('.quick-search').children('.search-query').bind('keyup', function (e){ 
if (accumulatedTime < 1000) { 
window.clearTimeout(intentTimer); 
} 
var me = $(this); 
if (_AN_Read_length('length', me.val()) > 0) { 
$(".search-icon").removeClass("icon-search").addClass("icon-remove-circle").css('cursor', 'pointer'); 
} 
 else { 
$(".search-icon").removeClass("icon-remove-circle").addClass("icon-search").css('cursor', 'auto'); 
} 
var intentTime = 500 - (_AN_Read_length('length', me.val()) * 10); 
accumulatedTime += intentTime; 
intentTimer = _AN_Call_settimeout('setTimeout', window, function (){ 
if (searchVal == me.val()) { 
return false ; 
} 
searchVal = me.val(); 
search(me.val()); 
accumulatedTime = 0; 
} 
, intentTime); 
} 
); 
$(".search-icon").click(function (e){ 
if ($(this).hasClass('icon-remove-circle')) { 
$('.search-query').val('').trigger('keyup'); 
} 
 else { 
$('.search-query').focus(); 
} 
} 
); 
var navHeight = $(".navbar").height(); 
var searchHeight = $(".quick-search").height(); 
$(".quick-search").css({ 
'top': navHeight + 10 + 'px',
'position': 'fixed'}
); 
el.css('top', navHeight + searchHeight + 15 + 'px'); 
} 
); 
} 
; 
jQuery.fn.toc.defaults = { 
container: 'body',
selectors: 'h1,h2,h3',
smoothScrolling: true ,
prefix: 'toc',
onHighlight: function (){ 
} 
,
highlightOnScroll: true ,
highlightOffset: 100,
anchorName: function (i, heading, prefix){ 
return prefix + i; 
} 
,
headerText: function (i, heading, $heading){ 
return $heading.text(); 
} 
,
itemClass: function (i, heading, $heading, prefix){ 
return prefix + '-' + $heading[0].tagName.toLowerCase(); 
} 
}
; 
} 
)(jQuery);