/**
 * hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
 * <http://cherne.net/brian/resources/jquery.hoverIntent.html>
 *
 * @param  f  onMouseOver function || An object with configuration options
 * @param  g  onMouseOut function  || Nothing (use configuration options object)
 * @author    Brian Cherne <brian@cherne.net>
 */
(function ($) {
    $.fn.hoverIntent = function (f, g) {
        var cfg = {
            sensitivity: 7,
            interval: 100,
            timeout: 0
        };
        cfg = $.extend(cfg, g ? {
            over: f,
            out: g
        } : f);
        var cX, cY, pX, pY;
        var track = function (ev) {
                cX = ev.pageX;
                cY = ev.pageY;
            };
        var compare = function (ev, ob) {
                ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
                if ((Math.abs(pX - cX) + Math.abs(pY - cY)) < cfg.sensitivity) {
                    $(ob).unbind("mousemove", track);
                    ob.hoverIntent_s = 1;
                    return cfg.over.apply(ob, [ev]);
                } else {
                    pX = cX;
                    pY = cY;
                    ob.hoverIntent_t = setTimeout(function () {
                        compare(ev, ob);
                    }, cfg.interval);
                }
            };
        var delay = function (ev, ob) {
                ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
                ob.hoverIntent_s = 0;
                return cfg.out.apply(ob, [ev]);
            };
        var handleHover = function (e) {
                var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;
                while (p && p != this) {
                    try {
                        p = p.parentNode;
                    } catch (e) {
                        p = this;
                    }
                }
                if (p == this) {
                    return false;
                }
                var ev = jQuery.extend({}, e);
                var ob = this;
                if (ob.hoverIntent_t) {
                    ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t);
                }
                if (e.type == "mouseover") {
                    pX = ev.pageX;
                    pY = ev.pageY;
                    $(ob).bind("mousemove", track);
                    if (ob.hoverIntent_s != 1) {
                        ob.hoverIntent_t = setTimeout(function () {
                            compare(ev, ob);
                        }, cfg.interval);
                    }
                } else {
                    $(ob).unbind("mousemove", track);
                    if (ob.hoverIntent_s == 1) {
                        ob.hoverIntent_t = setTimeout(function () {
                            delay(ev, ob);
                        }, cfg.timeout);
                    }
                }
            };
        return this.mouseover(handleHover).mouseout(handleHover);
    };
})(jQuery);