/*
 * jQuery.appear
 * https://github.com/bas2k/jquery.appear/
 * http://code.google.com/p/jquery-appear/
 * http://bas2k.ru/
 * Licensed under the MIT license (http://www.opensource.org/licenses/mit-license.php)
 */
! function(e) {
    e.fn.appear = function(a, r) {
        var p = e.extend({
            data: void 0,
            one: !0,
            accX: 0,
            accY: 0
        }, r);
        return this.each(function() {
            var r = e(this);
            if (r.appeared = !1, a) {
                var n = e(window),
                    t = function() {
                        if (r.is(":visible")) {
                            var e = n.scrollLeft(),
                                a = n.scrollTop(),
                                t = r.offset(),
                                c = t.left,
                                i = t.top,
                                o = p.accX,
                                f = p.accY,
                                s = r.height(),
                                l = n.height(),
                                h = r.width(),
                                d = n.width();
                            i + s + f >= a && i <= a + l + f && c + h + o >= e && c <= e + d + o ? r.appeared || r.trigger("appear", p.data) : r.appeared = !1
                        } else r.appeared = !1
                    },
                    c = function() {
                        if (r.appeared = !0, p.one) {
                            n.unbind("scroll", t);
                            var c = e.inArray(t, e.fn.appear.checks);
                            c >= 0 && e.fn.appear.checks.splice(c, 1)
                        }
                        a.apply(this, arguments)
                    };
                p.one ? r.one("appear", p.data, c) : r.bind("appear", p.data, c), n.scroll(t), e.fn.appear.checks.push(t), t()
            } else r.trigger("appear", p.data)
        })
    }, e.extend(e.fn.appear, {
        checks: [],
        timeout: null,
        checkAll: function() {
            var a = e.fn.appear.checks.length;
            if (a > 0)
                for (; a--;) e.fn.appear.checks[a]()
        },
        run: function() {
            e.fn.appear.timeout && clearTimeout(e.fn.appear.timeout), e.fn.appear.timeout = setTimeout(e.fn.appear.checkAll, 20)
        }
    }), e.each(["append", "prepend", "after", "before", "attr", "removeAttr", "addClass", "removeClass", "toggleClass", "remove", "css", "show", "hide"], function(a, r) {
        var p = e.fn[r];
        p && (e.fn[r] = function() {
            var a = p.apply(this, arguments);
            return e.fn.appear.run(), a
        })
    })
}(jQuery);