/*!
 * jQuery Lazy - min - v0.1.18
 * http://jquery.eisbehr.de/lazy/
 * http://eisbehr.de/
 *
 * Copyright 2014, Daniel 'Eisbehr' Kern
 *
 * Dual licensed under the MIT and GPL v2 licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl-2.0.html
 *
 * jQuery("img.lazy").lazy();
 */
(function(e, t, n, r) {
	e.fn.lazy = function(r) {
		function u(n) {
			if (typeof n != "boolean") n = false;
			s.each(function(num) {
				var r = e(this);
				var s = this.tagName.toLowerCase();
				if (f(r) || n) {
					if (r.attr(i.attribute) && (s == "img" && r.attr(i.attribute) != r.attr("src") || s != "img" && r.attr(i.attribute) != r.css("background-image")) && !r.data("loaded") && (r.is(":visible") || !i.visibleOnly)) {
						var u = e(new Image);
						++o;
						if (i.onError) u.error(function() {
							p(i.onError, r);
							h()
						});
						else u.error(function() {
							h()
						});
						var a = true;
						u.one("load", function() {
							var e = function() {
								if (a) {
									t.setTimeout(e, 100);
									return
								}
								r.hide();
								if (s == "img") r.attr("src", u.attr("src"));
								else r.css("background-image", "url(" + u.attr("src") + ")");
								setTimeout(function() {
									r[i.effect](i.effectTime);
								}, num * 50);
								if (i.removeAttribute) r.removeAttr(i.attribute);
								p(i.afterLoad, r);
								u.unbind("load");
								u.remove();
								h()
							};
							e()
						});
						p(i.beforeLoad, r);
						u.attr("src", r.attr(i.attribute));
						p(i.onLoad, r);
						a = false;
						if (u.complete) u.load();
						r.data("loaded", true)
					}
				}
			});
			s = e(s).filter(function() {
				return !e(this).data("loaded")
			})
		}

		function a() {
			if (i.delay >= 0) setTimeout(function() {
				u(true)
			}, i.delay);
			if (i.delay < 0 || i.combined) {
				u(false);
				e(i.appendScroll).bind("scroll", c(i.throttle, u));
				e(i.appendScroll).bind("resize", c(i.throttle, u))
			}
		}

		function f(e) {
			var t = n.documentElement.scrollTop ? n.documentElement.scrollTop : n.body.scrollTop;
			return t + l() + i.threshold > e.offset().top
		}

		function l() {
			if (t.innerHeight) return t.innerHeight;
			if (n.documentElement && n.documentElement.clientHeight) return n.documentElement.clientHeight;
			if (n.body && n.body.clientHeight) return n.body.clientHeight;
			if (n.body && n.body.offsetHeight) return n.body.offsetHeight;
			return i.fallbackHeight
		}

		function c(e, t) {
			function s() {
				function o() {
					r = +(new Date);
					t.apply()
				}
				var s = +(new Date) - r;
				n && clearTimeout(n);
				if (s > e || !i.enableThrottle) o();
				else n = setTimeout(o, e - s)
			}
			var n;
			var r = 0;
			return s
		}

		function h() {
			--o;
			if (!s.size() && !o) p(i.onFinishedAll, null)
		}

		function p(e, t) {
			if (e) {
				if (t !== null) e(t);
				else e()
			}
		}
		var i = {
			bind: "load",
			threshold: 500,
			fallbackHeight: 2e3,
			visibleOnly: true,
			appendScroll: t,
			delay: -1,
			combined: false,
			attribute: "data-src",
			removeAttribute: true,
			effect: "show",
			effectTime: 0,
			enableThrottle: false,
			throttle: 250,
			beforeLoad: null,
			onLoad: null,
			afterLoad: null,
			onError: null,
			onFinishedAll: null
		};
		if (r) e.extend(i, r);
		var s = this;
		var o = 0;
		if (i.bind == "load") e(t).load(a);
		else if (i.bind == "event") a();
		if (i.onError) s.bind("error", function() {
			p(i.onError, e(this))
		});
		return this
	};
	e.fn.Lazy = e.fn.lazy
})(jQuery, window, document);