;(function($){ // secure $ jQuery alias
/*******************************************************************************************/	
// jquery.event.hover.js - rev 5 
// Copyright (c) 2008, Three Dub Media (http://threedubmedia.com)
// Liscensed under the MIT License (MIT-LICENSE.txt)
// http://www.opensource.org/licenses/mit-license.php
// Created: 2008-06-02 | Updated: 2008-07-30
/*******************************************************************************************/

//	USE THESE PROPERTIES TO CUSTOMIZE SETTINGS...

//	$.event.special.hover.delay = 100; 
//	Defines the delay (msec) while mouse is inside the element before checking the speed

//	$.event.special.hover.speed = 100; 
//	Defines the maximum speed (px/sec) the mouse may be moving to trigger the hover event

// save the old jquery "hover" method
$.fn._hover = $.fn.hover;

// jquery method 
$.fn.hover = function(fn1, fn2, fn3) {
    if (fn3) { // 3 args
        this.bind('hoverstart', fn1);
    }
    if (fn2) { // 2+ args
        this.bind('hoverend', fn3 ? fn3 : fn2);
    }
    return !fn1 ? this.trigger('hover') // 0 args 
                : this.bind('hover', fn3 ? fn2 : fn1); // 1+ args
};

// special event configuration
var hover = ($.event.special.hover = {
    delay: 100, // milliseconds
    speed: 100, // pixels per second
    setup: function(data) {
        data = $.extend({
            speed: hover.speed,
            delay: hover.delay,
            hovered: 0
        }, data ||
        {});
        $.event.add(this, "mouseenter mouseleave", hoverHandler, data);
    },
    teardown: function() {
        $.event.remove(this, "mouseenter mouseleave", hoverHandler);
    }
});

// shared event handler
function hoverHandler( event ) {
    var data = event.data || event;
    switch ( event.type ) {
        case 'mouseenter': // mouseover
            data.dist2 = 0; // init mouse distance
            data.event = event; // store the event
            event.type = "hoverstart"; // hijack event
            if ($.event.handle.call(this, event) !== false) { // handle "hoverstart"
                data.elem = this; // ref to the current element
                $.event.add(this, "mousemove", hoverHandler, data); // track the mouse
                data.timer = setTimeout(compare, data.delay); // start async compare
            }
            break;
        case 'mousemove': // track the event, mouse distance = x + y
            data.dist2 += Math.pow(event.pageX - data.event.pageX, 2) +
            Math.pow(event.pageY - data.event.pageY, 2);
            data.event = event; // store current event
            break;
        case 'mouseleave': // mouseout
            clearTimeout(data.timer); // uncompare
            if (data.hovered) {
                event.type = "hoverend"; // hijack event
                $.event.handle.call(this, event); // handle "hoverend"
                data.hovered--; // reset flag
            } else {
                $.event.remove(data.elem, "mousemove", hoverHandler); // untrack
            }
            break;
        default: // timeout compare // distance = x + y = ( speed * time )
            if (data.dist2 <= Math.pow(data.speed * (data.delay / 1e3), 2)) { // speed acceptable
                $.event.remove(data.elem, "mousemove", hoverHandler); // untrack
                data.event.type = "hover"; // hijack event
                if ($.event.handle.call(data.elem, data.event) !== false) { // handle "hover"
                    data.hovered++; // flag for "hoverend"
                }
            } else {
                data.timer = setTimeout(compare, data.delay); // async recurse
            }
            data.dist2 = 0; // reset distance for next compare
            break;
    }
    function compare(){ hoverHandler( data ); } // timeout/recursive function
}

/*******************************************************************************************/
})(jQuery); // confine scope