(function(e) {
	"use strict";
	e.fn.pin = function(t) {
		var n = 0,
			r = [],
			i = false,
			s = e(window);
		t = t || {};
		var o = function() {
			for(var n = 0, o = r.length; n < o; n++) {
				var u = r[n];
				if(t.minwidth && s.width() <= t.minwidth) {
					if(u.parent().is(".pin-wrapper")) {
						u.unwrap()
					}
					u.css({
						width: "",
						left: "",
						top: "",
						position: ""
					});
					if(t.activeclass) {
						u.removeclass(t.activeclass)
					}
					i = true;
					continue
				} else {
					i = false
				}
				var a = t.containerselector ? u.closest(t.containerselector) : e(document.body);
				var f = u.offset();
				var l = a.offset();
				var c = u.offsetparent().offset();
				if(!u.parent().is(".pin-wrapper")) {
					u.wrap("<div class='pin-wrapper'>")
				}
				var h = e.extend({
					top: 0,
					bottom: 0
				}, t.padding || {});
				u.data("pin", {
					pad: h,
					from: (t.containerselector ? l.top : f.top) - h.top,
					to: l.top + a.height() - u.outerheight() - h.bottom,
					end: l.top + a.height(),
					parenttop: c.top
				});
				u.css({
					width: u.outerwidth()
				});
				u.parent().css("height", u.outerheight())
			}
		};
		var u = function() {
			if(i) {
				return
			}
			n = s.scrolltop();
			var o = [];
			for(var u = 0, a = r.length; u < a; u++) {
				var f = e(r[u]),
					l = f.data("pin");
				if(!l) {
					continue
				}
				o.push(f);
				var c = l.from - l.pad.bottom,
					h = l.to - l.pad.top;
				if(c + f.outerheight() > l.end) {
					f.css("position", "");
					continue
				}
				if(c < n && h > n) {
					!(f.css("position") == "fixed") && f.css({
						left: f.offset().left,
						top: l.pad.top
					}).css("position", "fixed");
					if(t.activeclass) {
						f.addclass(t.activeclass)
					}
				} else if(n >= h) {
					f.css({
						left: "",
						top: h - l.parenttop + l.pad.top
					}).css("position", "absolute");
					if(t.activeclass) {
						f.addclass(t.activeclass)
					}
				} else {
					f.css({
						position: "",
						top: "",
						left: ""
					});
					if(t.activeclass) {
						f.removeclass(t.activeclass)
					}
				}
			}
			r = o
		};
		var a = function() {
			o();
			u()
		};
		this.each(function() {
			var t = e(this),
				n = e(this).data("pin") || {};
			if(n && n.update) {
				return
			}
			r.push(t);
			e("img", this).one("load", o);
			n.update = a;
			e(this).data("pin", n)
		});
		s.scroll(u);
		s.resize(function() {
			o()
		});
		o();
		s.load(a);
		return this
	}
})(jquery)