//
// SmoothScroll for websites v1.4.0 (Balazs Galambosi)
// http://www.smoothscroll.net/
//
// Licensed under the terms of the MIT license.
//
// You may use it in your theme if you credit me. 
// It is also free to use on any individual website.
//
// Exception:
// The only restriction is to not publish any  
// extension for browsers or native application
// without getting a written permission first.
//
(function () {

    // Scroll Variables (tweakable)
    var defaultOptions = {

        // Scrolling Core
        frameRate: 150, // [Hz]
        animationTime: 400, // [ms]
        stepSize: 100, // [px]

        // Pulse (less tweakable)
        // ratio of "tail" to "acceleration"
        pulseAlgorithm: true,
        pulseScale: 4,
        pulseNormalize: 1,

        // Acceleration
        accelerationDelta: 50, // 50
        accelerationMax: 3, // 3

        // Keyboard Settings
        keyboardSupport: true, // option
        arrowScroll: 50, // [px]

        // Other
        touchpadSupport: false, // ignore touchpad by default
        fixedBackground: true,
        excluded: ''
    };

    var options = defaultOptions;
    
    // Other Variables
    var isExcluded = false;
    var isFrame = false;
    var direction = {
        x: 0,
        y: 0
    };
    var initDone = false;
    var root = document.documentElement;
    var activeElement;
    var observer;
    var refreshSize;
    var deltaBuffer = [];
    var isMac = /^Mac/.test(navigator.platform);

    var key = {
        left: 37,
        up: 38,
        right: 39,
        down: 40,
        spacebar: 32,
        pageup: 33,
        pagedown: 34,
        end: 35,
        home: 36
    };


    /***********************************************
     * INITIALIZE
     ***********************************************/

    /**
     * Tests if smooth scrolling is allowed. Shuts down everything if not.
     */
    function initTest() {
        if (options.keyboardSupport) {
            addEvent('keydown', keydown);
        }
    }

    /**
     * Sets up scrolls array, determines if frames are involved.
     */
    function init() {

        if (initDone || !document.body) return;

        initDone = true;

        var body = document.body;
        var html = document.documentElement;
        var windowHeight = window.innerHeight;
        var scrollHeight = body.scrollHeight;

        // check compat mode for root element
        root = (document.compatMode.indexOf('CSS') >= 0) ? html : body;
        activeElement = body;

        initTest();

        // Checks if this script is running in a frame
        if (top != self) {
            isFrame = true;
        }

        /**
         * Please duplicate this radar for a Safari fix! 
         * rdar://22376037
         * https://openradar.appspot.com/radar?id=4965070979203072
         * 
         * Only applies to Safari now, Chrome fixed it in v45:
         * This fixes a bug where the areas left and right to 
         * the content does not trigger the onmousewheel event
         * on some pages. e.g.: html, body { height: 100% }
         */
        else if (scrollHeight > windowHeight &&
            (body.offsetHeight <= windowHeight ||
                html.offsetHeight <= windowHeight)) {

            var fullPageElem = document.createElement('div');
            fullPageElem.style.cssText = 'position:absolute; z-index:-10000; ' +
                'top:0; left:0; right:0; height:' +
                root.scrollHeight + 'px';
            document.body.appendChild(fullPageElem);

            // DOM changed (throttled) to fix height
            var pendingRefresh;
            refreshSize = function () {
                if (pendingRefresh) return; // could also be: clearTimeout(pendingRefresh);
                pendingRefresh = setTimeout(function () {
                    if (isExcluded) return; // could be running after cleanup
                    fullPageElem.style.height = '0';
                    fullPageElem.style.height = root.scrollHeight + 'px';
                    pendingRefresh = null;
                }, 500); // act rarely to stay fast
            };

            setTimeout(refreshSize, 10);

            addEvent('resize', refreshSize);

            // TODO: attributeFilter?
            var config = {
                attributes: true,
                childList: true,
                characterData: false
                    // subtree: true
            };

            observer = new MutationObserver(refreshSize);
            observer.observe(body, config);

            if (root.offsetHeight <= windowHeight) {
                var clearfix = document.createElement('div');
                clearfix.style.clear = 'both';
                body.appendChild(clearfix);
            }
        }

        // disable fixed background
        if (!options.fixedBackground && !isExcluded) {
            body.style.backgroundAttachment = 'scroll';
            html.style.backgroundAttachment = 'scroll';
        }
    }

    /**
     * Removes event listeners and other traces left on the page.
     */
    function cleanup() {
        observer && observer.disconnect();
        removeEvent(wheelEvent, wheel);
        removeEvent('mousedown', mousedown);
        removeEvent('keydown', keydown);
        removeEvent('resize', refreshSize);
        removeEvent('load', init);
    }


    /************************************************
     * SCROLLING 
     ************************************************/

    var que = [];
    var pending = false;
    var lastScroll = Date.now();

    /**
     * Pushes scroll actions to the scrolling queue.
     */
    function scrollArray(elem, left, top) {

        directionCheck(left, top);

        if (options.accelerationMax != 1) {
            var now = Date.now();
            var elapsed = now - lastScroll;
            if (elapsed < options.accelerationDelta) {
                var factor = (1 + (50 / elapsed)) / 2;
                if (factor > 1) {
                    factor = Math.min(factor, options.accelerationMax);
                    left *= factor;
                    top *= factor;
                }
            }
            lastScroll = Date.now();
        }

        // push a scroll command
        que.push({
            x: left,
            y: top,
            lastX: (left < 0) ? 0.99 : -0.99,
            lastY: (top < 0) ? 0.99 : -0.99,
            start: Date.now()
        });

        // don't act if there's a pending queue
        if (pending) {
            return;
        }

        var scrollWindow = (elem === document.body);

        var step = function (time) {

            var now = Date.now();
            var scrollX = 0;
            var scrollY = 0;

            for (var i = 0; i < que.length; i++) {

                var item = que[i];
                var elapsed = now - item.start;
                var finished = (elapsed >= options.animationTime);

                // scroll position: [0, 1]
                var position = (finished) ? 1 : elapsed / options.animationTime;

                // easing [optional]
                if (options.pulseAlgorithm) {
                    position = pulse(position);
                }

                // only need the difference
                var x = (item.x * position - item.lastX) >> 0;
                var y = (item.y * position - item.lastY) >> 0;

                // add this to the total scrolling
                scrollX += x;
                scrollY += y;

                // update last values
                item.lastX += x;
                item.lastY += y;

                // delete and step back if it's over
                if (finished) {
                    que.splice(i, 1);
                    i--;
                }
            }

            // scroll left and top
            if (scrollWindow) {
                window.scrollBy(scrollX, scrollY);
            } else {
                if (scrollX) elem.scrollLeft += scrollX;
                if (scrollY) elem.scrollTop += scrollY;
            }

            // clean up if there's nothing left to do
            if (!left && !top) {
                que = [];
            }

            if (que.length) {
                requestFrame(step, elem, (1000 / options.frameRate + 1));
            } else {
                pending = false;
            }
        };

        // start a new queue of actions
        requestFrame(step, elem, 0);
        pending = true;
    }


    /***********************************************
     * EVENTS
     ***********************************************/

    /**
     * Mouse wheel handler.
     * @param {Object} event
     */
    function wheel(event) {

        if (!initDone) {
            init();
        }

        var target = event.target;
        var overflowing = overflowingAncestor(target);

        // use default if there's no overflowing
        // element or default action is prevented   
        // or it's a zooming event with CTRL 
        if (!overflowing || event.defaultPrevented || event.ctrlKey) {
            return true;
        }

        // leave embedded content alone (flash & pdf)
        if (isNodeName(activeElement, 'embed') ||
            (isNodeName(target, 'embed') && /\.pdf/i.test(target.src)) ||
            isNodeName(activeElement, 'object')) {
            return true;
        }

        var deltaX = -event.wheelDeltaX || event.deltaX || 0;
        var deltaY = -event.wheelDeltaY || event.deltaY || 0;

        if (isMac) {
            if (event.wheelDeltaX && isDivisible(event.wheelDeltaX, 120)) {
                deltaX = -120 * (event.wheelDeltaX / Math.abs(event.wheelDeltaX));
            }
            if (event.wheelDeltaY && isDivisible(event.wheelDeltaY, 120)) {
                deltaY = -120 * (event.wheelDeltaY / Math.abs(event.wheelDeltaY));
            }
        }

        // use wheelDelta if deltaX/Y is not available
        if (!deltaX && !deltaY) {
            deltaY = -event.wheelDelta || 0;
        }

        // line based scrolling (Firefox mostly)
        if (event.deltaMode === 1) {
            deltaX *= 40;
            deltaY *= 40;
        }

        // check if it's a touchpad scroll that should be ignored
        if (!options.touchpadSupport && isTouchpad(deltaY)) {
            return true;
        }

        // scale by step size
        // delta is 120 most of the time
        // synaptics seems to send 1 sometimes
        if (Math.abs(deltaX) > 1.2) {
            deltaX *= options.stepSize / 120;
        }
        if (Math.abs(deltaY) > 1.2) {
            deltaY *= options.stepSize / 120;
        }

        scrollArray(overflowing, deltaX, deltaY);
        event.preventDefault();
        scheduleClearCache();
    }

    /**
     * Keydown event handler.
     * @param {Object} event
     */
    function keydown(event) {

        var target = event.target;
        var modifier = event.ctrlKey || event.altKey || event.metaKey ||
            (event.shiftKey && event.keyCode !== key.spacebar);

        // our own tracked active element could've been removed from the DOM
        if (!document.contains(activeElement)) {
            activeElement = document.activeElement;
        }

        // do nothing if user is editing text
        // or using a modifier key (except shift)
        // or in a dropdown
        // or inside interactive elements
        var inputNodeNames = /^(textarea|select|embed|object)$/i;
        var buttonTypes = /^(button|submit|radio|checkbox|file|color|image)$/i;
        if (inputNodeNames.test(target.nodeName) ||
            isNodeName(target, 'input') && !buttonTypes.test(target.type) ||
            isNodeName(activeElement, 'video') ||
            isInsideYoutubeVideo(event) ||
            target.isContentEditable ||
            event.defaultPrevented ||
            modifier) {
            return true;
        }

        // spacebar should trigger button press
        if ((isNodeName(target, 'button') ||
                isNodeName(target, 'input') && buttonTypes.test(target.type)) &&
            event.keyCode === key.spacebar) {
            return true;
        }

        var shift, x = 0,
            y = 0;
        var elem = overflowingAncestor(activeElement);
        var clientHeight = elem.clientHeight;

        if (elem == document.body) {
            clientHeight = window.innerHeight;
        }

        switch (event.keyCode) {
        case key.up:
            y = -options.arrowScroll;
            break;
        case key.down:
            y = options.arrowScroll;
            break;
        case key.spacebar: // (+ shift)
            shift = event.shiftKey ? 1 : -1;
            y = -shift * clientHeight * 0.9;
            break;
        case key.pageup:
            y = -clientHeight * 0.9;
            break;
        case key.pagedown:
            y = clientHeight * 0.9;
            break;
        case key.home:
            y = -elem.scrollTop;
            break;
        case key.end:
            var damt = elem.scrollHeight - elem.scrollTop - clientHeight;
            y = (damt > 0) ? damt + 10 : 0;
            break;
        case key.left:
            x = -options.arrowScroll;
            break;
        case key.right:
            x = options.arrowScroll;
            break;
        default:
            return true; // a key we don't care about
        }

        scrollArray(elem, x, y);
        event.preventDefault();
        scheduleClearCache();
    }

    /**
     * Mousedown event only for updating activeElement
     */
    function mousedown(event) {
        activeElement = event.target;
    }


    /***********************************************
     * OVERFLOW
     ***********************************************/

    var uniqueID = (function () {
        var i = 0;
        return function (el) {
            return el.uniqueID || (el.uniqueID = i++);
        };
    })();

    var cache = {}; // cleared out after a scrolling session
    var clearCacheTimer;

    //setInterval(function () { cache = {}; }, 10 * 1000);

    function scheduleClearCache() {
        clearTimeout(clearCacheTimer);
        clearCacheTimer = setInterval(function () {
            cache = {};
        }, 1 * 1000);
    }

    function setCache(elems, overflowing) {
        for (var i = elems.length; i--;)
            cache[uniqueID(elems[i])] = overflowing;
        return overflowing;
    }

    //  (body)                (root)
    //         | hidden | visible | scroll |  auto  |
    // hidden  |   no   |    no   |   YES  |   YES  |
    // visible |   no   |   YES   |   YES  |   YES  |
    // scroll  |   no   |   YES   |   YES  |   YES  |
    // auto    |   no   |   YES   |   YES  |   YES  |

    function overflowingAncestor(el) {
        var elems = [];
        var body = document.body;
        var rootScrollHeight = root.scrollHeight;
        do {
            var cached = cache[uniqueID(el)];
            if (cached) {
                return setCache(elems, cached);
            }
            elems.push(el);
            if (rootScrollHeight === el.scrollHeight) {
                var topOverflowsNotHidden = overflowNotHidden(root) && overflowNotHidden(body);
                var isOverflowCSS = topOverflowsNotHidden || overflowAutoOrScroll(root);
                if (isFrame && isContentOverflowing(root) ||
                    !isFrame && isOverflowCSS) {
                    return setCache(elems, getScrollRoot());
                }
            } else if (isContentOverflowing(el) && overflowAutoOrScroll(el)) {
                return setCache(elems, el);
            }
        } while (el = el.parentElement);
    }

    function isContentOverflowing(el) {
        return (el.clientHeight + 10 < el.scrollHeight);
    }

    // typically for <body> and <html>
    function overflowNotHidden(el) {
        var overflow = getComputedStyle(el, '').getPropertyValue('overflow-y');
        return (overflow !== 'hidden');
    }

    // for all other elements
    function overflowAutoOrScroll(el) {
        var overflow = getComputedStyle(el, '').getPropertyValue('overflow-y');
        return (overflow === 'scroll' || overflow === 'auto');
    }


    /***********************************************
     * HELPERS
     ***********************************************/

    function addEvent(type, fn) {
        window.addEventListener(type, fn, false);
    }

    function removeEvent(type, fn) {
        window.removeEventListener(type, fn, false);
    }

    function isNodeName(el, tag) {
        return (el.nodeName || '').toLowerCase() === tag.toLowerCase();
    }

    function directionCheck(x, y) {
        x = (x > 0) ? 1 : -1;
        y = (y > 0) ? 1 : -1;
        if (direction.x !== x || direction.y !== y) {
            direction.x = x;
            direction.y = y;
            que = [];
            lastScroll = 0;
        }
    }

    var deltaBufferTimer;

    if (window.localStorage && localStorage.SS_deltaBuffer) {
        deltaBuffer = localStorage.SS_deltaBuffer.split(',');
    }

    function isTouchpad(deltaY) {
        if (!deltaY) return;
        if (!deltaBuffer.length) {
            deltaBuffer = [deltaY, deltaY, deltaY];
        }
        deltaY = Math.abs(deltaY)
        deltaBuffer.push(deltaY);
        deltaBuffer.shift();
        clearTimeout(deltaBufferTimer);
        deltaBufferTimer = setTimeout(function () {
            if (window.localStorage) {
                localStorage.SS_deltaBuffer = deltaBuffer.join(',');
            }
        }, 1000);
        return !allDeltasDivisableBy(120) && !allDeltasDivisableBy(100);
    }

    function isDivisible(n, divisor) {
        return (Math.floor(n / divisor) == n / divisor);
    }

    function allDeltasDivisableBy(divisor) {
        return (isDivisible(deltaBuffer[0], divisor) &&
            isDivisible(deltaBuffer[1], divisor) &&
            isDivisible(deltaBuffer[2], divisor));
    }

    function isInsideYoutubeVideo(event) {
        var elem = event.target;
        var isControl = false;
        if (document.URL.indexOf('www.youtube.com/watch') != -1) {
            do {
                isControl = (elem.classList &&
                    elem.classList.contains('html5-video-controls'));
                if (isControl) break;
            } while (elem = elem.parentNode);
        }
        return isControl;
    }

    var requestFrame = (function () {
        return (window.requestAnimationFrame ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame ||
            function (callback, element, delay) {
                window.setTimeout(callback, delay || (1000 / 60));
            });
    })();

    var MutationObserver = (window.MutationObserver ||
        window.WebKitMutationObserver ||
        window.MozMutationObserver);

    var getScrollRoot = (function () {
        var SCROLL_ROOT;
        return function () {
            if (!SCROLL_ROOT) {
                var dummy = document.createElement('div');
                dummy.style.cssText = 'height:10000px;width:1px;';
                document.body.appendChild(dummy);
                var bodyScrollTop = document.body.scrollTop;
                var docElScrollTop = document.documentElement.scrollTop;
                window.scrollBy(0, 1);
                if (document.body.scrollTop != bodyScrollTop)
                    (SCROLL_ROOT = document.body);
                else
                    (SCROLL_ROOT = document.documentElement);
                window.scrollBy(0, -1);
                document.body.removeChild(dummy);
            }
            return SCROLL_ROOT;
        };
    })();


    /***********************************************
     * PULSE (by Michael Herf)
     ***********************************************/

    /**
     * Viscous fluid with a pulse for part and decay for the rest.
     * - Applies a fixed force over an interval (a damped acceleration), and
     * - Lets the exponential bleed away the velocity over a longer interval
     * - Michael Herf, http://stereopsis.com/stopping/
     */
    function pulse_(x) {
        var val, start, expx;
        // test
        x = x * options.pulseScale;
        if (x < 1) { // acceleartion
            val = x - (1 - Math.exp(-x));
        } else { // tail
            // the previous animation ended here:
            start = Math.exp(-1);
            // simple viscous drag
            x -= 1;
            expx = 1 - Math.exp(-x);
            val = start + (expx * (1 - start));
        }
        return val * options.pulseNormalize;
    }

    function pulse(x) {
        if (x >= 1) return 1;
        if (x <= 0) return 0;

        if (options.pulseNormalize == 1) {
            options.pulseNormalize /= pulse_(1);
        }
        return pulse_(x);
    }


    /***********************************************
     * FIRST RUN
     ***********************************************/

    var userAgent = window.navigator.userAgent;
    var isEdge = /Edge/.test(userAgent); // thank you MS
    var isChrome = /chrome/i.test(userAgent) && !isEdge;
    var isSafari = /safari/i.test(userAgent) && !isEdge;
    var isMobile = /mobile/i.test(userAgent);
    var isEnabledForBrowser = (isChrome || isSafari) && !isMobile;

    var wheelEvent;
    if ('onwheel' in document.createElement('div'))
        wheelEvent = 'wheel';
    else if ('onmousewheel' in document.createElement('div'))
        wheelEvent = 'mousewheel';

    if (wheelEvent && isEnabledForBrowser) {
        addEvent(wheelEvent, wheel);
        addEvent('mousedown', mousedown);
        addEvent('load', init);
    }


    /***********************************************
     * PUBLIC INTERFACE
     ***********************************************/

    function SmoothScroll(optionsToSet) {
        for (var key in optionsToSet)
            if (defaultOptions.hasOwnProperty(key))
                options[key] = optionsToSet[key];
    }
    SmoothScroll.destroy = cleanup;

    if (window.SmoothScrollOptions) // async API
        SmoothScroll(window.SmoothScrollOptions)

    if ('object' == typeof exports)
        module.exports = SmoothScroll;
    else
        window.SmoothScroll = SmoothScroll;

})();







/*
 * jQuery Easing v1.3 - http://gsgd.co.uk/sandbox/jquery/easing/
 *
 * Uses the built in easing capabilities added In jQuery 1.1
 * to offer multiple easing options
 *
 * TERMS OF USE - jQuery Easing
 * 
 * Open source under the BSD License. 
 * 
 * Copyright © 2008 George McGinley Smith
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list of 
 * conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list 
 * of conditions and the following disclaimer in the documentation and/or other materials 
 * provided with the distribution.
 * 
 * Neither the name of the author nor the names of contributors may be used to endorse 
 * or promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 *  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 *  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 
 * OF THE POSSIBILITY OF SUCH DAMAGE. 
 *
*/

// t: current time, b: begInnIng value, c: change In value, d: duration
jQuery.easing['jswing'] = jQuery.easing['swing'];

jQuery.extend( jQuery.easing,
{
	def: 'easeOutQuad',
	swing: function (x, t, b, c, d) {
		//alert(jQuery.easing.default);
		return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
	},
	easeInQuad: function (x, t, b, c, d) {
		return c*(t/=d)*t + b;
	},
	easeOutQuad: function (x, t, b, c, d) {
		return -c *(t/=d)*(t-2) + b;
	},
	easeInOutQuad: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},
	easeInCubic: function (x, t, b, c, d) {
		return c*(t/=d)*t*t + b;
	},
	easeOutCubic: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t + 1) + b;
	},
	easeInOutCubic: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},
	easeInQuart: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t + b;
	},
	easeOutQuart: function (x, t, b, c, d) {
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},
	easeInOutQuart: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},
	easeInQuint: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t*t + b;
	},
	easeOutQuint: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},
	easeInOutQuint: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
		return c/2*((t-=2)*t*t*t*t + 2) + b;
	},
	easeInSine: function (x, t, b, c, d) {
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},
	easeOutSine: function (x, t, b, c, d) {
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},
	easeInOutSine: function (x, t, b, c, d) {
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},
	easeInExpo: function (x, t, b, c, d) {
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},
	easeOutExpo: function (x, t, b, c, d) {
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},
	easeInOutExpo: function (x, t, b, c, d) {
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},
	easeInCirc: function (x, t, b, c, d) {
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},
	easeOutCirc: function (x, t, b, c, d) {
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},
	easeInOutCirc: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
		return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
	},
	easeInElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
	},
	easeOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
	},
	easeInOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
		return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
	},
	easeInBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},
	easeOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},
	easeInOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158; 
		if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
		return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
	},
	easeInBounce: function (x, t, b, c, d) {
		return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
	},
	easeOutBounce: function (x, t, b, c, d) {
		if ((t/=d) < (1/2.75)) {
			return c*(7.5625*t*t) + b;
		} else if (t < (2/2.75)) {
			return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
		} else if (t < (2.5/2.75)) {
			return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
		} else {
			return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
		}
	},
	easeInOutBounce: function (x, t, b, c, d) {
		if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
		return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
	}
});





// jQuery for page scrolling feature - requires jQuery Easing plugin
$('a.page-scroll').on('click', function (event) {
    var $anchor = $(this);
    $('html, body').stop().animate({
        scrollTop: ($($anchor.attr('href')).offset().top)
    }, 700, 'easeInOutSine');
    event.preventDefault();
});



/* Page Preloader Script */
$(window).load(function () {
    $('#preloader').delay(100).fadeOut('slow');
    $('html,body').addClass('add-oveflow');
});



jQuery(document).ready(function ($) {
    navigation_menu();
    goto_top_page();
});



/* Animated Navigation Menu */
function navigation_menu() {
    (function ($) {

        var isLateralNavAnimating = false;
        $('.nav-button').on('click', function (event) {
            event.preventDefault();
            if (!isLateralNavAnimating) {
                if ($(this).parents('.csstransitions').length > 0) isLateralNavAnimating = true;
                $('html').toggleClass('scroll-hide');
                $('.goto-top').toggleClass('goto-hide');
                $('body').toggleClass('navigation-is-open');
                $('.nav-wrapper').one('webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend', function () {
                    isLateralNavAnimating = false;
                });
            }
        });

    })(jQuery);
}



/* Script for Go to top */
function goto_top_page() {
    (function ($) {

        var offset = 600,
        /* visible when reach */
        offset_opacity = 1200,
        /* opacity reduced when reach */
        $back_to_top = $('.goto-top');
        //hide or show the "back to top" link
        $(window).scroll(function () {
            ($(this).scrollTop() > offset) ? $back_to_top.addClass('goto-is-visible'): $back_to_top.removeClass('goto-is-visible goto-fade-out');
            if ($(this).scrollTop() > offset_opacity) {
                $back_to_top.addClass('goto-fade-out');
            }
        });
        //smooth scroll to top
        $back_to_top.on('click', function (event) {
            event.preventDefault();
            $('body,html').animate({
                scrollTop: $('#top').offset().top,
            }, 700);
        });

    })(jQuery);
}



/* Initialize ScrollReveal.js plugin */
function initialize_scrollreveal() {
    (function ($) {

        window.sr = ScrollReveal();
        // Add class to <html> if ScrollReveal is supported
        if (sr.isSupported()) {
            document.documentElement.classList.add('sr');
        }

    })(jQuery);
}