function browser() {
    var browser = "Unknown browser";
    if(!!window.chrome && !(!!window.opera))  browser = 'chrome'; // Chrome 1+
    if(typeof InstallTrigger !== 'undefined')  browser = 'firefox'; // Firefox 1.0+
    if(!!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0)  browser = 'opera'; // Opera 8.0+ (UA detection to detect Blink/v8-powered Opera)
    if(/*@cc_on!@*/false || !!document.documentMode)  browser = 'ie'; // At least IE6
    if(Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0)  browser = 'safari'; // At least Safari 3+: "[object HTMLElementConstructor]"
    
    return browser;
}

function is_touch_device() {
    return ('ontouchstart' in document.documentElement); 
}

var onePager = jQuery('.mk-edge-one-pager').length;


if(!onePager && (browser() === 'chrome' || browser() === 'ie_11')) {  
    // SmoothScroll for websites v1.2.1


    // Licensed under the terms of the MIT license.

    // People involved
    //  - Balazs Galambosi (maintainer)  
    //  - Michael Herf     (Pulse Algorithm)

    (function(){

        // Scroll Variables (tweakable)
        var defaultOptions = {

            // Scrolling Core
            frameRate        : 150, // [Hz]
            animationTime    : 400, // [px]
            stepSize         : 120, // [px]

            // Pulse (less tweakable)
            // ratio of "tail" to "acceleration"
            pulseAlgorithm   : true,
            pulseScale       : 8,
            pulseNormalize   : 1,

            // Acceleration
            accelerationDelta : 20,  // 20
            accelerationMax   : 1,   // 1
         
            // Keyboard Settings
            keyboardSupport   : true,  // option
            arrowScroll       : 50,     // [px]

            // Other
            touchpadSupport   : true,
            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 deltaBuffer = [ 120, 120, 120 ];

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


        /***********************************************
         * SETTINGS
         ***********************************************/

        var options = defaultOptions;


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

        /**
         * Tests if smooth scrolling is allowed. Shuts down everything if not.
         */
        function initTest() {

            var disableKeyboard = false; 
            
            // disable keyboard support if anything above requested it
            if (disableKeyboard) {
                removeEvent("keydown", keydown);
            }

            if (options.keyboardSupport && !disableKeyboard) {
                addEvent("keydown", keydown);
            }
        }

        /**
         * Sets up scrolls array, determines if frames are involved.
         */


        function init() {
          
            if (!document.body) return;

            if(is_touch_device()) return;

            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();
            initDone = true;

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

            /**
             * 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)) {

                html.style.height = 'auto';
                setTimeout(refresh, 10);

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

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


        /************************************************
         * SCROLLING 
         ************************************************/
         
        var que = [];
        var pending = false;
        var lastScroll = +new Date;

        /**
         * Pushes scroll actions to the scrolling queue.
         */
        function scrollArray(elem, left, top, delay) {
            
            delay || (delay = 1000);
            directionCheck(left, top);

            if (options.accelerationMax != 1) {
                var now = +new Date;
                var elapsed = now - lastScroll;
                if (elapsed < options.accelerationDelta) {
                    var factor = (1 + (30 / elapsed)) / 2;
                    if (factor > 1) {
                        factor = Math.min(factor, options.accelerationMax);
                        left *= factor;
                        top  *= factor;
                    }
                }
                lastScroll = +new Date;
            }          
            
            // 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: +new Date
            });
                
            // don't act if there's a pending queue
            if (pending) {
                return;
            }  

            var scrollWindow = (elem === document.body);
            
            var step = function (time) {
                
                var now = +new Date;
                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, (delay / 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    
            if (!overflowing || event.defaultPrevented ||
                isNodeName(activeElement, "embed") ||
               (isNodeName(target, "embed") && /\.pdf/i.test(target.src))) {
                return true;
            }

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

            // 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();
        }

        /**
         * 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);
            
            // do nothing if user is editing text
            // or using a modifier key (except shift)
            // or in a dropdown
            if ( /input|textarea|select|embed/i.test(target.nodeName) ||
                 target.isContentEditable || 
                 event.defaultPrevented   ||
                 modifier ) {
              return true;
            }
            // spacebar should trigger button press
            if (isNodeName(target, "button") &&
                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();
        }

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


        /***********************************************
         * OVERFLOW
         ***********************************************/
         
        var cache = {}; // cleared out every once in while
        setInterval(function () { cache = {}; }, 10 * 1000);

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

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

        function overflowingAncestor(el) {
            var elems = [];
            var rootScrollHeight = root.scrollHeight;
            do {
                var cached = cache[uniqueID(el)];
                if (cached) {
                    return setCache(elems, cached);
                }
                elems.push(el);
                if (rootScrollHeight === el.scrollHeight) {
                    if (!isFrame || root.clientHeight + 10 < rootScrollHeight) {
                        return setCache(elems, document.body); // scrolling root in WebKit
                    }
                } else if (el.clientHeight + 10 < el.scrollHeight) {
                    overflow = getComputedStyle(el, "").getPropertyValue("overflow-y");
                    if (overflow === "scroll" || overflow === "auto") {
                        return setCache(elems, el);
                    }
                }
            } while (el = el.parentNode);
        }


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

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

        function removeEvent(type, fn, bubble) {
            window.removeEventListener(type, fn, (bubble||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;

        function isTouchpad(deltaY) {
            if (!deltaY) return;
            deltaY = Math.abs(deltaY)
            deltaBuffer.push(deltaY);
            deltaBuffer.shift();
            clearTimeout(deltaBufferTimer);

            var allEquals    = (deltaBuffer[0] == deltaBuffer[1] && 
                                deltaBuffer[1] == deltaBuffer[2]);
            var allDivisable = (isDivisible(deltaBuffer[0], 120) &&
                                isDivisible(deltaBuffer[1], 120) &&
                                isDivisible(deltaBuffer[2], 120));
            return !(allEquals || allDivisable);
        } 

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

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


        /***********************************************
         * PULSE
         ***********************************************/
         
        /**
         * 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);
        }

        var isChrome = /chrome/i.test(window.navigator.userAgent);
        var isMouseWheelSupported = 'onmousewheel' in document; 

        if (isMouseWheelSupported) {
          addEvent("mousedown", mousedown);
          addEvent("mousewheel", wheel);
          addEvent("load", init);
        };

    })();
}

if(browser() === 'ie') {
    /**
     * Created by IntelliJ IDEA.
     *
     * User: phil
     * Date: 15/11/12
     * Time: 11:04 AM
     *
     */
    (function($) {

      var self = this,
        container, running = false,
        currentY = 0,
        targetY = 0,
        oldY = 0,
        maxScrollTop = 0,
        minScrollTop, direction, onRenderCallback = null,
        fricton = 0.7, // higher value for slower deceleration
        vy = 0,
        stepAmt = 5,
        minMovement = 0.1,
        ts = 0.1;

      var updateScrollTarget = function(amt) {
        targetY += amt;
        vy += (targetY - oldY) * stepAmt;

        oldY = targetY;
      }
      var render = function() {
        if (vy < -(minMovement) || vy > minMovement) {

          currentY = (currentY + vy);
          if (currentY > maxScrollTop) {
            currentY = vy = 0;
          } else if (currentY < minScrollTop) {
            vy = 0;
            currentY = minScrollTop;
          }

          container.scrollTop(-currentY);

          vy *= fricton;

          if (onRenderCallback) {
            onRenderCallback();
          }
        }
      }
      var animateLoop = function() {
        if (!running) return;
        requestAnimFrame(animateLoop);
        render();
        //log("45","animateLoop","animateLoop", "",stop);
      }
      var onWheel = function(e) {
        e.preventDefault();
        var evt = e.originalEvent;

        var delta = evt.detail ? evt.detail * -1 : evt.wheelDelta / 40;
        var dir = delta < 0 ? -1 : 1;
        if (dir != direction) {
          vy = 0;
          direction = dir;
        }

        //reset currentY in case non-wheel scroll has occurred (scrollbar drag, etc.)
        currentY = -container.scrollTop();
        updateScrollTarget(delta);
      }

      /*
       * http://paulirish.com/2011/requestanimationframe-for-smart-animating/
       */
      window.requestAnimFrame = (function() {
        return window.requestAnimationFrame ||
          window.webkitRequestAnimationFrame ||
          window.mozRequestAnimationFrame ||
          window.oRequestAnimationFrame ||
          window.msRequestAnimationFrame ||
          function(callback) {
            window.setTimeout(callback, 1000 / 60);
          };
      })();

      /*
       * http://jsbin.com/iqafek/2/edit
       */
      var normalizeWheelDelta = function() {
        // Keep a distribution of observed values, and scale by the
        // 33rd percentile.
        var distribution = [],
          done = null,
          scale = 30;
        return function(n) {
          // Zeroes don't count.
          if (n == 0) return n;
          // After 500 samples, we stop sampling and keep current factor.
          if (done != null) return n * done;
          var abs = Math.abs(n);
          // Insert value (sorted in ascending order).
          outer: do { // Just used for break goto
            for (var i = 0; i < distribution.length; ++i) {
              if (abs <= distribution[i]) {
                distribution.splice(i, 0, abs);
                break outer;
              }
            }
            distribution.push(abs);
          } while (false);
          // Factor is scale divided by 33rd percentile.
          var factor = scale / distribution[Math.floor(distribution.length / 3)];
          if (distribution.length == 500) done = factor;
          return n * factor;
        };
      }();


      $.fn.smoothWheel = function() {
        //  var args = [].splice.call(arguments, 0);
        var options = jQuery.extend({}, arguments[0]);
        return this.each(function(index, elm) {

          if (!('ontouchstart' in window)) {
            container = $(this);
            container.bind("mousewheel", onWheel);
            container.bind("DOMMouseScroll", onWheel);

            //set target/old/current Y to match current scroll position to prevent jump to top of container
            targetY = oldY = container.scrollTop();
            currentY = -targetY;

            minScrollTop = container.get(0).clientHeight - container.get(0).scrollHeight;
            if (options.onRender) {
              onRenderCallback = options.onRender;
            }
            if (options.remove) {
              log("122", "smoothWheel", "remove", "");
              running = false;
              container.unbind("mousewheel", onWheel);
              container.unbind("DOMMouseScroll", onWheel);
            } else if (!running) {
              running = true;
              animateLoop();
            }

          }
        });
      };

    })(jQuery);


    (function($, window) {
        $(window).load(function(){
            $(window).smoothWheel()
        });
    })(jQuery, window);
    
}