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Filename : parallax.min.js
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! function (t, i, e, s) {
	function o(i, e) {
		var h = this;
		"object" == typeof e && (delete e.refresh, delete e.render, t.extend(this, e)), this.$element = t(i), !this.imageSrc && this.$element.is("img") && (this.imageSrc = this.$element.attr("src"));
		var r = (this.position + "").toLowerCase().match(/\S+/g) || [];
		if (r.length < 1 && r.push("center"), 1 == r.length && r.push(r[0]), "top" != r[0] && "bottom" != r[0] && "left" != r[1] && "right" != r[1] || (r = [r[1], r[0]]), this.positionX !== s && (r[0] = this.positionX.toLowerCase()), this.positionY !== s && (r[1] = this.positionY.toLowerCase()), h.positionX = r[0], h.positionY = r[1], "left" != this.positionX && "right" != this.positionX && (isNaN(parseInt(this.positionX)) ? this.positionX = "center" : this.positionX = parseInt(this.positionX)), "top" != this.positionY && "bottom" != this.positionY && (isNaN(parseInt(this.positionY)) ? this.positionY = "center" : this.positionY = parseInt(this.positionY)), this.position = this.positionX + (isNaN(this.positionX) ? "" : "px") + " " + this.positionY + (isNaN(this.positionY) ? "" : "px"), navigator.userAgent.match(/(iPod|iPhone|iPad)/)) return this.imageSrc && this.iosFix && !this.$element.is("img") && this.$element.css({
			backgroundImage: 'url("' + this.imageSrc + '")',
			backgroundSize: "cover",
			backgroundPosition: this.position
		}), this;
		if (navigator.userAgent.match(/(Android)/)) return this.imageSrc && this.androidFix && !this.$element.is("img") && this.$element.css({
			backgroundImage: 'url("' + this.imageSrc + '")',
			backgroundSize: "cover",
			backgroundPosition: this.position
		}), this;
		this.$mirror = t("<div />").prependTo(this.mirrorContainer);
		var a = this.$element.find(">.parallax-slider"),
			n = !1;
		0 == a.length ? this.$slider = t("<img />").prependTo(this.$mirror) : (this.$slider = a.prependTo(this.$mirror), n = !0), this.$mirror.addClass("parallax-mirror").css({
			visibility: "hidden",
			zIndex: this.zIndex,
			position: "fixed",
			top: 0,
			left: 0,
			overflow: "hidden"
		}), this.$slider.addClass("parallax-slider").one("load", function () {
			h.naturalHeight && h.naturalWidth || (h.naturalHeight = this.naturalHeight || this.height || 1, h.naturalWidth = this.naturalWidth || this.width || 1), h.aspectRatio = h.naturalWidth / h.naturalHeight, o.isSetup || o.setup(), o.sliders.push(h), o.isFresh = !1, o.requestRender()
		}), n || (this.$slider[0].src = this.imageSrc), (this.naturalHeight && this.naturalWidth || this.$slider[0].complete || a.length > 0) && this.$slider.trigger("load")
	}! function () {
		for (var t = 0, e = ["ms", "moz", "webkit", "o"], s = 0; s < e.length && !i.requestAnimationFrame; ++s) i.requestAnimationFrame = i[e[s] + "RequestAnimationFrame"], i.cancelAnimationFrame = i[e[s] + "CancelAnimationFrame"] || i[e[s] + "CancelRequestAnimationFrame"];
		i.requestAnimationFrame || (i.requestAnimationFrame = function (e) {
			var s = (new Date).getTime(),
				o = Math.max(0, 16 - (s - t)),
				h = i.setTimeout(function () {
					e(s + o)
				}, o);
			return t = s + o, h
		}), i.cancelAnimationFrame || (i.cancelAnimationFrame = function (t) {
			clearTimeout(t)
		})
	}(), t.extend(o.prototype, {
		speed:.3,
		bleed: 0,
		zIndex: -100,
		iosFix: !0,
		androidFix: !0,
		position: "center",
		overScrollFix: !1,
		mirrorContainer: "body",
		refresh: function () {
			this.boxWidth = this.$element.outerWidth(), this.boxHeight = this.$element.outerHeight() + 2 * this.bleed, this.boxOffsetTop = this.$element.offset().top - this.bleed, this.boxOffsetLeft = this.$element.offset().left, this.boxOffsetBottom = this.boxOffsetTop + this.boxHeight;
			var t, i = o.winHeight,
				e = o.docHeight,
				s = Math.min(this.boxOffsetTop, e - i),
				h = Math.max(this.boxOffsetTop + this.boxHeight - i, 0),
				r = this.boxHeight + (s - h) * (1 - this.speed) | 0,
				a = (this.boxOffsetTop - s) * (1 - this.speed) | 0;
			r * this.aspectRatio >= this.boxWidth ? (this.imageWidth = r * this.aspectRatio | 0, this.imageHeight = r, this.offsetBaseTop = a, t = this.imageWidth - this.boxWidth, "left" == this.positionX ? this.offsetLeft = 0 : "right" == this.positionX ? this.offsetLeft = -t : isNaN(this.positionX) ? this.offsetLeft = -t / 2 | 0 : this.offsetLeft = Math.max(this.positionX, -t)) : (this.imageWidth = this.boxWidth, this.imageHeight = this.boxWidth / this.aspectRatio | 0, this.offsetLeft = 0, t = this.imageHeight - r, "top" == this.positionY ? this.offsetBaseTop = a : "bottom" == this.positionY ? this.offsetBaseTop = a - t : isNaN(this.positionY) ? this.offsetBaseTop = a - t / 2 | 0 : this.offsetBaseTop = a + Math.max(this.positionY, -t))
		},
		render: function () {
			var t = o.scrollTop,
				i = o.scrollLeft,
				e = this.overScrollFix ? o.overScroll : 0,
				s = t + o.winHeight;
			this.boxOffsetBottom > t && this.boxOffsetTop <= s ? (this.visibility = "visible", this.mirrorTop = this.boxOffsetTop - t, this.mirrorLeft = this.boxOffsetLeft - i, this.offsetTop = this.offsetBaseTop - this.mirrorTop * (1 - this.speed)) : this.visibility = "hidden", this.$mirror.css({
				transform: "translate3d(" + this.mirrorLeft + "px, " + (this.mirrorTop - e) + "px, 0px)",
				visibility: this.visibility,
				height: this.boxHeight,
				width: this.boxWidth
			}), this.$slider.css({
				transform: "translate3d(" + this.offsetLeft + "px, " + this.offsetTop + "px, 0px)",
				position: "absolute",
				height: this.imageHeight,
				width: this.imageWidth,
				maxWidth: "none"
			})
		}
	}), t.extend(o, {
		scrollTop: 0,
		scrollLeft: 0,
		winHeight: 0,
		winWidth: 0,
		docHeight: 1 << 30,
		docWidth: 1 << 30,
		sliders: [],
		isReady: !1,
		isFresh: !1,
		isBusy: !1,
		setup: function () {
			function s() {
				if (p == i.pageYOffset) return i.requestAnimationFrame(s), !1;
				p = i.pageYOffset, h.render(), i.requestAnimationFrame(s)
			}
			if (!this.isReady) {
				var h = this,
					r = t(e),
					a = t(i),
					n = function () {
						o.winHeight = a.height(), o.winWidth = a.width(), o.docHeight = r.height(), o.docWidth = r.width()
					},
					l = function () {
						var t = a.scrollTop(),
							i = o.docHeight - o.winHeight,
							e = o.docWidth - o.winWidth;
						o.scrollTop = Math.max(0, Math.min(i, t)), o.scrollLeft = Math.max(0, Math.min(e, a.scrollLeft())), o.overScroll = Math.max(t - i, Math.min(t, 0))
					};
				a.on("resize.px.parallax load.px.parallax", function () {
					n(), h.refresh(), o.isFresh = !1, o.requestRender()
				}).on("scroll.px.parallax load.px.parallax", function () {
					l(), o.requestRender()
				}), n(), l(), this.isReady = !0;
				var p = -1;
				s()
			}
		},
		configure: function (i) {
			"object" == typeof i && (delete i.refresh, delete i.render, t.extend(this.prototype, i))
		},
		refresh: function () {
			t.each(this.sliders, function () {
				this.refresh()
			}), this.isFresh = !0
		},
		render: function () {
			this.isFresh || this.refresh(), t.each(this.sliders, function () {
				this.render()
			})
		},
		requestRender: function () {
			var t = this;
			t.render(), t.isBusy = !1
		},
		destroy: function (e) {
			var s, h = t(e).data("px.parallax");
			for (h.$mirror.remove(), s = 0; s < this.sliders.length; s += 1) this.sliders[s] == h && this.sliders.splice(s, 1);
			t(e).data("px.parallax", !1), 0 === this.sliders.length && (t(i).off("scroll.px.parallax resize.px.parallax load.px.parallax"), this.isReady = !1, o.isSetup = !1)
		}
	});
	var h = t.fn.parallax;
	t.fn.parallax = function (s) {
		return this.each(function () {
			var h = t(this),
				r = "object" == typeof s && s;
			this == i || this == e || h.is("body") ? o.configure(r) : h.data("px.parallax") ? "object" == typeof s && t.extend(h.data("px.parallax"), r) : (r = t.extend({}, h.data(), r), h.data("px.parallax", new o(this, r))), "string" == typeof s && ("destroy" == s ? o.destroy(this) : o[s]())
		})
	}, t.fn.parallax.Constructor = o, t.fn.parallax.noConflict = function () {
		return t.fn.parallax = h, this
	}, t(function () {
		t('[data-parallax="scroll"]').parallax()
	})
}(jQuery, window, document);