(function (factory){ 
if (typeof define === 'function' && define.amd) { 
define(['jquery'] , factory); 
} 
 else if (typeof module === 'object' && module.exports) { 
factory(require('jquery')); 
} 
 else { 
factory(jQuery); 
} 
} 
(function ($){ 
var version = '2.2.0'; 
var optionOverrides = { 
}
; 
var defaults = { 
exclude: [] ,
excludeWithin: [] ,
offset: 0,
direction: 'top',
delegateSelector: null ,
scrollElement: null ,
scrollTarget: null ,
autoFocus: false ,
beforeScroll: function (){ 
} 
,
afterScroll: function (){ 
} 
,
easing: 'swing',
speed: 400,
autoCoefficient: 2,
preventDefault: true }
; 
var getScrollable = function (opts){ 
var scrollable = [] ; 
var scrolled = false ; 
var dir = opts.dir && opts.dir === 'left'? 'scrollLeft': 'scrollTop'; 
this.each(function (){ 
var el = $(this); 
if (this === document || this === window) { 
return ; 
} 
if (document.scrollingElement && (this === document.documentElement || this === document.body)) { 
scrollable.push(document.scrollingElement); 
return false ; 
} 
if (el[dir]() > 0) { 
scrollable.push(this); 
} 
 else { 
el[dir](1); 
scrolled = el[dir]() > 0; 
if (scrolled) { 
scrollable.push(this); 
} 
el[dir](0); 
} 
} 
); 
if (!_AN_Read_length('length', scrollable)) { 
this.each(function (){ 
if (this === document.documentElement && $(this).css('scrollBehavior') === 'smooth') { 
scrollable = [this] ; 
} 
if (!_AN_Read_length('length', scrollable) && this.nodeName === 'BODY') { 
scrollable = [this] ; 
} 
} 
); 
} 
if (opts.el === 'first' && _AN_Read_length('length', scrollable) > 1) { 
scrollable = [scrollable[0]] ; 
} 
return scrollable; 
} 
; 
var rRelative = /^([\-\+]=)(\d+)/; 
$.fn.extend({ 
scrollable: function (dir){ 
var scrl = getScrollable.call(this, { 
dir: dir}
); 
return this.pushStack(scrl); 
} 
,
firstScrollable: function (dir){ 
var scrl = getScrollable.call(this, { 
el: 'first',
dir: dir}
); 
return this.pushStack(scrl); 
} 
,
smoothScroll: function (options, extra){ 
options = options || { 
}
; 
if (options === 'options') { 
if (!extra) { 
return this.first().data('ssOpts'); 
} 
return this.each(function (){ 
var $this = $(this); 
var opts = $.extend($this.data('ssOpts') || { 
}
, extra); 
$(this).data('ssOpts', opts); 
} 
); 
} 
var opts = $.extend({ 
}
, $.fn.smoothScroll.defaults, options); 
var clickHandler = function (event){ 
var escapeSelector = function (str){ 
return _AN_Call_replace('replace', str, /(:|\.|\/)/g, '\\$1'); 
} 
; 
var link = this; 
var $link = $(this); 
var thisOpts = $.extend({ 
}
, opts, $link.data('ssOpts') || { 
}
); 
var exclude = opts.exclude; 
var excludeWithin = thisOpts.excludeWithin; 
var elCounter = 0; 
var ewlCounter = 0; 
var include = true ; 
var clickOpts = { 
}
; 
var locationPath = $.smoothScroll.filterPath(_AN_Read_pathname('pathname', _AN_Read_location('location', window))); 
var linkPath = $.smoothScroll.filterPath(_AN_Read_pathname('pathname', link)); 
var hostMatch = _AN_Read_hostname('hostname', _AN_Read_location('location', window)) === _AN_Read_hostname('hostname', link) || !_AN_Read_hostname('hostname', link); 
var pathMatch = thisOpts.scrollTarget || (linkPath === locationPath); 
var thisHash = escapeSelector(_AN_Read_hash('hash', link)); 
if (thisHash && !_AN_Read_length('length', $(thisHash))) { 
include = false ; 
} 
if (!thisOpts.scrollTarget && (!hostMatch || !pathMatch || !thisHash)) { 
include = false ; 
} 
 else { 
while (include && elCounter < _AN_Read_length('length', exclude)){ 
if ($link.is(escapeSelector(exclude[elCounter++ ]))) { 
include = false ; 
} 
} 
while (include && ewlCounter < _AN_Read_length('length', excludeWithin)){ 
if ($link.closest(excludeWithin[ewlCounter++ ]).length) { 
include = false ; 
} 
} 
} 
if (include) { 
if (thisOpts.preventDefault) { 
event.preventDefault(); 
} 
$.extend(clickOpts, thisOpts, { 
scrollTarget: thisOpts.scrollTarget || thisHash,
link: link}
); 
$.smoothScroll(clickOpts); 
} 
} 
; 
if (options.delegateSelector !== null ) { 
this.off('click.smoothscroll', options.delegateSelector).on('click.smoothscroll', options.delegateSelector, clickHandler); 
} 
 else { 
this.off('click.smoothscroll').on('click.smoothscroll', clickHandler); 
} 
return this; 
} 
}
); 
var getExplicitOffset = function (val){ 
var explicit = { 
relative: ''}
; 
var parts = typeof val === 'string' && rRelative.exec(val); 
if (typeof val === 'number') { 
explicit.px = val; 
} 
 else if (parts) { 
explicit.relative = parts[1]; 
explicit.px = parseFloat(parts[2]) || 0; 
} 
return explicit; 
} 
; 
var onAfterScroll = function (opts){ 
var $tgt = $(opts.scrollTarget); 
if (opts.autoFocus && _AN_Read_length('length', $tgt)) { 
$tgt[0].focus(); 
if (!$tgt.is(document.activeElement)) { 
$tgt.prop({ 
tabIndex: -1}
); 
$tgt[0].focus(); 
} 
} 
opts.afterScroll.call(opts.link, opts); 
} 
; 
$.smoothScroll = function (options, px){ 
if (options === 'options' && typeof px === 'object') { 
return $.extend(optionOverrides, px); 
} 
var opts, $scroller, speed, delta; 
var explicitOffset = getExplicitOffset(options); 
var scrollTargetOffset = { 
}
; 
var scrollerOffset = 0; 
var offPos = 'offset'; 
var scrollDir = 'scrollTop'; 
var aniProps = { 
}
; 
var aniOpts = { 
}
; 
if (explicitOffset.px) { 
opts = $.extend({ 
link: null }
, $.fn.smoothScroll.defaults, optionOverrides); 
} 
 else { 
opts = $.extend({ 
link: null }
, $.fn.smoothScroll.defaults, options || { 
}
, optionOverrides); 
if (opts.scrollElement) { 
offPos = 'position'; 
if (opts.scrollElement.css('position') === 'static') { 
opts.scrollElement.css('position', 'relative'); 
} 
} 
if (px) { 
explicitOffset = getExplicitOffset(px); 
} 
} 
scrollDir = opts.direction === 'left'? 'scrollLeft': scrollDir; 
if (opts.scrollElement) { 
$scroller = opts.scrollElement; 
if (!explicitOffset.px && !(/^(?:HTML|BODY)$/).test($scroller[0].nodeName)) { 
scrollerOffset = $scroller[scrollDir](); 
} 
} 
 else { 
$scroller = $('html, body').firstScrollable(opts.direction); 
} 
opts.beforeScroll.call($scroller, opts); 
scrollTargetOffset = explicitOffset.px? explicitOffset: { 
relative: '',
px: ($(opts.scrollTarget)[offPos]() && $(opts.scrollTarget)[offPos]()[opts.direction]) || 0}
; 
aniProps[scrollDir] = scrollTargetOffset.relative + (scrollTargetOffset.px + scrollerOffset + opts.offset); 
speed = opts.speed; 
if (speed === 'auto') { 
delta = Math.abs(aniProps[scrollDir] - $scroller[scrollDir]()); 
speed = delta / opts.autoCoefficient; 
} 
aniOpts = { 
duration: speed,
easing: opts.easing,
complete: function (){ 
onAfterScroll(opts); 
} 
}
; 
if (opts.step) { 
aniOpts.step = opts.step; 
} 
if ($scroller.length) { 
$scroller.stop().animate(aniProps, aniOpts); 
} 
 else { 
onAfterScroll(opts); 
} 
} 
; 
$.smoothScroll.version = version; 
$.smoothScroll.filterPath = function (string){ 
string = string || ''; 
return _AN_Call_replace('replace', _AN_Call_replace('replace', _AN_Call_replace('replace', string, /^\//, ''), /(?:index|default).[a-zA-Z]{3,4}$/, ''), /\/$/, ''); 
} 
; 
$.fn.smoothScroll.defaults = defaults; 
} 
));