https://www.yarnsandfibers.com/wp-content/uploads/hummingbird-assets/92b07003ad7281e2bb94173cba591298.js

1/**handles:jquery-scrollto**/
2/*!
3 * jQuery.scrollTo
4 * Copyright (c) 2007-2015 Ariel Flesler - aflesler<a>gmail<d>com | http://flesler.blogspot.com
5 * Licensed under MIT
6 * http://flesler.blogspot.com/2007/10/jqueryscrollto.html
7 * @projectDescription Lightweight, cross-browser and highly customizable animated scrolling with jQuery
8 * @author Ariel Flesler
9 * @version 2.1.2
10 */
11;(function(factory) {
12	'use strict';
13	if (typeof define === 'function' && define.amd) {
14		// AMD
15		define( ['jquery'], factory );
16	} else if (typeof module !== 'undefined' && module.exports) {
17		// CommonJS
18		module.exports = factory( require( 'jquery' ) );
19	} else {
20		// Global
21		factory( jQuery );
22	}
23})(function($) {
24	'use strict';
25
26	var $scrollTo = $.scrollTo = function(target, duration, settings) {
27		return $( window ).scrollTo( target, duration, settings );
28	};
29
30	$scrollTo.defaults = {
31		axis:'xy',
32		duration: 0,
33		limit:true
34	};
35
36	function isWin(elem) {
37		return ! elem.nodeName ||
38			$.inArray( elem.nodeName.toLowerCase(), ['iframe','#document','html','body'] ) !== -1;
39	}
40
41	$.fn.scrollTo = function(target, duration, settings) {
42		if (typeof duration === 'object') {
43			settings = duration;
44			duration = 0;
45		}
46		if (typeof settings === 'function') {
47			settings = { onAfter:settings };
48		}
49		if (target === 'max') {
50			target = 9e9;
51		}
52
53		settings = $.extend( {}, $scrollTo.defaults, settings );
54		// Speed is still recognized for backwards compatibility
55		duration = duration || settings.duration;
56		// Make sure the settings are given right
57		var queue = settings.queue && settings.axis.length > 1;
58		if (queue) {
59			// Let's keep the overall duration
60			duration /= 2;
61		}
62		settings.offset = both( settings.offset );
63		settings.over = both( settings.over );
64
65		return this.each(function() {
66			// Null target yields nothing, just like jQuery does
67			if (target === null) { return; }
68
69			var win = isWin( this ),
70				elem = win ? this.contentWindow || window : this,
71				$elem = $( elem ),
72				targ = target,
73				attr = {},
74				toff;
75
76			switch (typeof targ) {
77				// A number will pass the regex
78				case 'number':
79				case 'string':
80					if (/^([+-]=?)?\d+(\.\d+)?(px|%)?$/.test( targ )) {
81						targ = both( targ );
82						// We are done
83						break;
84					}
85					// Relative/Absolute selector
86					targ = win ? $( targ ) : $( targ, elem );
87					/* falls through */
88				case 'object':
89					if (targ.length === 0) { return; }
90					// DOMElement / jQuery
91					if (targ.is || targ.style) {
92						// Get the real position of the target
93						toff = (targ = $( targ )).offset();
94					}
95			}
96
97			var offset = $.isFunction( settings.offset ) && settings.offset( elem, targ ) || settings.offset;
98
99			$.each(settings.axis.split( '' ), function(i, axis) {
100				var Pos	= axis === 'x' ? 'Left' : 'Top',
101					pos = Pos.toLowerCase(),
102					key = 'scroll' + Pos,
103					prev = $elem[key](),
104					max = $scrollTo.max( elem, axis );
105
106				if (toff) {// jQuery / DOMElement
107					attr[key] = toff[pos] + (win ? 0 : prev - $elem.offset()[pos]);
108
109					// If it's a dom element, reduce the margin
110					if (settings.margin) {
111						attr[key] -= parseInt( targ.css( 'margin' + Pos ), 10 ) || 0;
112						attr[key] -= parseInt( targ.css( 'border' + Pos + 'Width' ), 10 ) || 0;
113					}
114
115					attr[key] += offset[pos] || 0;
116
117					if (settings.over[pos]) {
118						// Scroll to a fraction of its width/height
119						attr[key] += targ[axis === 'x'?'width':'height']() * settings.over[pos];
120					}
121				} else {
122					var val = targ[pos];
123					// Handle percentage values
124					attr[key] = val.slice && val.slice( -1 ) === '%' ?
125						parseFloat( val ) / 100 * max
126						: val;
127				}
128
129				// Number or 'number'
130				if (settings.limit && /^\d+$/.test( attr[key] )) {
131					// Check the limits
132					attr[key] = attr[key] <= 0 ? 0 : Math.min( attr[key], max );
133				}
134
135				// Don't waste time animating, if there's no need.
136				if ( ! i && settings.axis.length > 1) {
137					if (prev === attr[key]) {
138						// No animation needed
139						attr = {};
140					} else if (queue) {
141						// Intermediate animation
142						animate( settings.onAfterFirst );
143						// Don't animate this axis again in the next iteration.
144						attr = {};
145					}
146				}
147			});
148
149			animate( settings.onAfter );
150
151			function animate(callback) {
152				var opts = $.extend({}, settings, {
153					// The queue setting conflicts with animate()
154					// Force it to always be true
155					queue: true,
156					duration: duration,
157					complete: callback && function() {
158						callback.call( elem, targ, settings );
159					}
160				});
161				$elem.animate( attr, opts );
162			}
163		});
164	};
165
166	// Max scrolling position, works on quirks mode