! function() {
function o() {
b.keyboardSupport && H("keydown", w)
}
function p() {
if (!f && document.body) {
f = !0;
var a = document.body,
e = document.documentElement,
k = window.innerHeight,
l = a.scrollHeight;
if (g = document.compatMode.indexOf("CSS") >= 0 ? e : a, h = a, o(), top != self) d = !0;
else if (l > k && (a.offsetHeight <= k || e.offsetHeight <= k)) {
var m = document.createElement("div");
m.style.cssText = "position:absolute; z-index:-10000; top:0; left:0; right:0; height:" + g.scrollHeight + "px", document.body.appendChild(m);
var n;
j = function() {
n || (n = setTimeout(function() {
c || (m.style.height = "0", m.style.height = g.scrollHeight + "px", n = null)
}, 500))
}, setTimeout(j, 10), H("resize", j);
var p = {
attributes: !0,
childList: !0,
characterData: !1
};
if (i = new R(j), i.observe(a, p), g.offsetHeight <= k) {
var q = document.createElement("div");
q.style.clear = "both", a.appendChild(q)
}
}
b.fixedBackground || c || (a.style.backgroundAttachment = "scroll", e.style.backgroundAttachment = "scroll")
}
}
function q() {
i && i.disconnect(), I(Y, v), I("mousedown", x), I("keydown", w), I("resize", j), I("load", p)
}
function u(a, c, d) {
if (K(c, d), 1 != b.accelerationMax) {
var e = Date.now(),
f = e - t;
if (f < b.accelerationDelta) {
var g = (1 + 50 / f) / 2;
g > 1 && (g = Math.min(g, b.accelerationMax), c *= g, d *= g)
}
t = Date.now()
}
if (r.push({
x: c,
y: d,
lastX: 0 > c ? .99 : -.99,
lastY: 0 > d ? .99 : -.99,
start: Date.now()
}), !s) {
var h = a === document.body,
i = function(e) {
for (var f = Date.now(), g = 0, j = 0, k = 0; k < r.length; k++) {
var l = r[k],
m = f - l.start,
n = m >= b.animationTime,
o = n ? 1 : m / b.animationTime;
b.pulseAlgorithm && (o = U(o));
var p = l.x * o - l.lastX >> 0,
q = l.y * o - l.lastY >> 0;
g += p, j += q, l.lastX += p, l.lastY += q, n && (r.splice(k, 1), k--)
}
h ? window.scrollBy(g, j) : (g && (a.scrollLeft += g), j && (a.scrollTop += j)), c || d || (r = []), r.length ? Q(i, a, 1e3 / b.frameRate + 1) : s = !1
};
Q(i, a, 0), s = !0
}
}
function v(a) {
f || p();
var c = a.target,
d = D(c);
if (!d || a.defaultPrevented || a.ctrlKey) return !0;
if (J(h, "embed") || J(c, "embed") && /\.pdf/i.test(c.src) || J(h, "object") || c.shadowRoot) return !0;
var e = -a.wheelDeltaX || a.deltaX || 0,
g = -a.wheelDeltaY || a.deltaY || 0;
return l && (a.wheelDeltaX && N(a.wheelDeltaX, 120) && (e = -120 * (a.wheelDeltaX / Math.abs(a.wheelDeltaX))), a.wheelDeltaY && N(a.wheelDeltaY, 120) && (g = -120 * (a.wheelDeltaY / Math.abs(a.wheelDeltaY)))), e || g || (g = -a.wheelDelta || 0), 1 === a.deltaMode && (e *= 40, g *= 40), !b.touchpadSupport && M(g) ? !0 : (Math.abs(e) > 1.2 && (e *= b.stepSize / 120), Math.abs(g) > 1.2 && (g *= b.stepSize / 120), u(d, e, g), a.preventDefault(), void B())
}
function w(a) {
var c = a.target,
d = a.ctrlKey || a.altKey || a.metaKey || a.shiftKey && a.keyCode !== m.spacebar;
document.body.contains(h) || (h = document.activeElement);
var e = /^(textarea|select|embed|object)$/i,
f = /^(button|submit|radio|checkbox|file|color|image)$/i;
if (a.defaultPrevented || e.test(c.nodeName) || J(c, "input") && !f.test(c.type) || J(h, "video") || P(a) || c.isContentEditable || d) return !0;
if ((J(c, "button") || J(c, "input") && f.test(c.type)) && a.keyCode === m.spacebar) return !0;
if (J(c, "input") && "radio" == c.type && n[a.keyCode]) return !0;
var g, i = 0,
j = 0,
k = D(h),
l = k.clientHeight;
switch (k == document.body && (l = window.innerHeight), a.keyCode) {
case m.up:
j = -b.arrowScroll;
break;
case m.down:
j = b.arrowScroll;
break;
case m.spacebar:
g = a.shiftKey ? 1 : -1, j = -g * l * .9;
break;
case m.pageup:
j = .9 * -l;
break;
case m.pagedown:
j = .9 * l;
break;
case m.home:
j = -k.scrollTop;
break;
case m.end:
var o = k.scrollHeight - k.scrollTop - l;
j = o > 0 ? o + 10 : 0;
break;
case m.left:
i = -b.arrowScroll;
break;
case m.right:
i = b.arrowScroll;
break;
default:
return !0
}
u(k, i, j), a.preventDefault(), B()
}
function x(a) {
h = a.target
}
function B() {
clearTimeout(A), A = setInterval(function() {
z = {}
}, 1e3)
}
function C(a, b) {
for (var c = a.length; c--;) z[y(a[c])] = b;
return b
}
function D(a) {
var b = [],
c = document.body,
e = g.scrollHeight;
do {
var f = z[y(a)];
if (f) return C(b, f);
if (b.push(a), e === a.scrollHeight) {
var h = F(g) && F(c),
i = h || G(g);
if (d && E(g) || !d && i) return C(b, S())
} else if (E(a) && G(a)) return C(b, a)
} while (a = a.parentElement)
}
function E(a) {
return a.clientHeight + 10 < a.scrollHeight
}
function F(a) {
var b = getComputedStyle(a, "").getPropertyValue("overflow-y");
return "hidden" !== b
}
function G(a) {
var b = getComputedStyle(a, "").getPropertyValue("overflow-y");
return "scroll" === b || "auto" === b
}
function H(a, b) {
window.addEventListener(a, b, !1)
}
function I(a, b) {
window.removeEventListener(a, b, !1)
}
function J(a, b) {
return (a.nodeName || "").toLowerCase() === b.toLowerCase()
}
function K(a, b) {
a = a > 0 ? 1 : -1, b = b > 0 ? 1 : -1, (e.x !== a || e.y !== b) && (e.x = a, e.y = b, r = [], t = 0)
}
function M(a) {
return a ? (k.length || (k = [a, a, a]), a = Math.abs(a), k.push(a), k.shift(), clearTimeout(L), L = setTimeout(function() {
window.localStorage && (localStorage.SS_deltaBuffer = k.join(","))
}, 1e3), !O(120) && !O(100)) : void 0
}
function N(a, b) {
return Math.floor(a / b) == a / b
}
function O(a) {
return N(k[0], a) && N(k[1], a) && N(k[2], a)
}
function P(a) {
var b = a.target,
c = !1;
if (-1 != document.URL.indexOf("www.youtube.com/watch"))
do
if (c = b.classList && b.classList.contains("html5-video-controls")) break;
while (b = b.parentNode);
return c
}
function T(a) {
var c, d, e;
return a *= b.pulseScale, 1 > a ? c = a - (1 - Math.exp(-a)) : (d = Math.exp(-1), a -= 1, e = 1 - Math.exp(-a), c = d + e * (1 - d)), c * b.pulseNormalize
}
function U(a) {
return a >= 1 ? 1 : 0 >= a ? 0 : (1 == b.pulseNormalize && (b.pulseNormalize /= T(1)), T(a))
}
function Z(c) {
for (var d in c) a.hasOwnProperty(d) && (b[d] = c[d])
}
var h, i, j, A, L, a = {
frameRate: 150,
animationTime: php_vars.speed,
stepSize: php_vars.step,
pulseAlgorithm: !0,
pulseScale: 4,
pulseNormalize: 1,
accelerationDelta: 50,
accelerationMax: 3,
keyboardSupport: !0,
arrowScroll: 50,
touchpadSupport: !1,
fixedBackground: !0,
excluded: ""
},
b = a,
c = !1,
d = !1,
e = {
x: 0,
y: 0
},
f = !1,
g = document.documentElement,
k = [],
l = /^Mac/.test(navigator.platform),
m = {
left: 37,
up: 38,
right: 39,
down: 40,
spacebar: 32,
pageup: 33,
pagedown: 34,
end: 35,
home: 36
},
n = {
37: 1,
38: 1,
39: 1,
40: 1
},
r = [],
s = !1,
t = Date.now(),
y = function() {
var a = 0;
return function(b) {
return b.uniqueID || (b.uniqueID = a++)
}
}(),
z = {};
window.localStorage && localStorage.SS_deltaBuffer && (k = localStorage.SS_deltaBuffer.split(","));
var Y, Q = function() {
return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || function(a, b, c) {
window.setTimeout(a, c || 1e3 / 60)
}
}(),
R = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver,
S = function() {
var a;
return function() {
if (!a) {
var b = document.createElement("div");
b.style.cssText = "height:10000px;width:1px;", document.body.appendChild(b);
var c = document.body.scrollTop;
document.documentElement.scrollTop;
window.scrollBy(0, 3), a = document.body.scrollTop != c ? document.body : document.documentElement, window.scrollBy(0, -3), document.body.removeChild(b)
}
return a
}
}(),
V = window.navigator.userAgent,
W = /mobile/i.test(V),
X = !W;
"onwheel" in document.createElement("div") ? Y = "wheel" : "onmousewheel" in document.createElement("div") && (Y = "mousewheel"), Y && X && (H(Y, v), H("mousedown", x), H("load", p)), Z.destroy = q, window.SmoothScrollOptions && Z(window.SmoothScrollOptions), "function" == typeof define && define.amd ? define(function() {
return Z
}) : "object" == typeof exports ? module.exports = Z : window.SmoothScroll = Z
}();