//NuvuScroll  - 2011 - A jQuery Plugin. NRC Studios - http://nuvuscroll.nrcstudios.info written by: Nolan R Campbell - nuvuscripts@gmail.com
(function ($) {
    $.fn.nuvuscroll = function (options) {
        //set document width and height
        // default options
        options = $.extend({
            direction: 'vertical',
            triggersize: 200,
            speed: 6,
            trailspeed: 1000,
            traildist: 20,
            traileasing: 'swing',
            keypress: 'true'
        }, options);
        return this.each(function () {
            var plake = $(this);
            var o = $.metadata ? $.extend({}, options, plake.metadata()) : options;
            var scroll = plake.find('.scroll');
            plake.mouseout(function () {
                scroll.stop()
            });
            //start if vertical
            if (options.direction == 'vertical') {
                var thisw = plake.width();
                var thish = plake.height();
                var thisx = plake.position().left;
                var thisy = plake.position().top;
                //set hover elements to position within targeted element
                plake.find('.hovtopleft').css({
                    'top': '0px',
                    'left': '0px',
                    'width': thisw,
                    'height': o.triggersize + 'px'
                });
                plake.find('.hovbottomright').css({
                    'bottom': '0px',
                    'left': '0px',
                    'width': thisw,
                    'height': o.triggersize + 'px'
                });
                //top hover function
                plake.find('.hovtopleft').hover(function () {
                    plake.find('.scroll').stop();
                    var top = plake.find('.scroll').position().top;
                    //looping animation up function
                    (function up() {
                        if (plake.find('.scroll').position().top >= -10) {
                            var thist = plake.find('.scroll').position().top;
                            plake.find('.scroll').stop();
                            plake.find('.scroll').css({
                                'top': (thist - 10)
                            })
                        };
                        var top = plake.find('.scroll').position().top;
                        plake.find('.scroll').animate({
                            'top': top + o.speed
                        }, {
                            duration: 0.01,
                            easing: 'linear',
                            complete: up
                        })
                    })(); //end up function
                }, function () {
                    var thistop = scroll.position().top;
                    //animate scroll out
                    scroll.animate({
                        'top': thistop - o.traildist
                    }, {
                        duration: o.trailspeed,
                        easing: o.traileasing,
                        queue: 'true'
                    });
                }); // end top hover function
                // bottom hover function
                plake.find('.hovbottomright').hover(function () {
                    scroll.stop();
                    var top = scroll.position().top;
                    //loop animation down function
                    (function down() {
                        if (scroll.position().top <= ('-' + (scroll.height() - plake.height()))) {
                            var thist = scroll.position().top;
                            scroll.stop();
                            scroll.css({
                                'top': (thist + 10)
                            });
                        };
                        var top = scroll.position().top;
                        scroll.animate({
                            'top': top - o.speed
                        }, {
                            duration: 0.01,
                            easing: 'linear',
                            complete: down
                        });
                    })(); //end down function
                }, function () {
                    var thistop = scroll.position().top;
                    // animate scroll out
                    scroll.animate({
                        'top': thistop + o.traildist
                    }, {
                        duration: o.trailspeed,
                        easing: o.traileasing,
                        queue: 'true'
                    });
                });
                //vertical up and down keypress function
                if (options.keypress == 'true') {
                    $(document).keydown(function (e) {
                        // animate functions for mouse and key events

                        function animateup() {
                            scroll.stop();
                            if (scroll.position().top <= ('-' + (scroll.height() - plake.height()))) {
                                var thist = scroll.position().top;
                                scroll.stop();
                                scroll.css({
                                    'top': (thist + 10)
                                });
                            }; //end if
                            var top = scroll.position().top;
                            scroll.animate({
                                'top': top - o.speed
                            }, {
                                duration: 0.01,
                                easing: 'linear'
                            });
                            e.preventDefault();
                        }; //end animateup function

                        function animatedown() {
                            scroll.stop();
                            if (scroll.position().top >= -10) {
                                var thist = scroll.position().top;
                                scroll.stop();
                                scroll.css({
                                    'top': (thist - 10)
                                })
                            };
                            var top = scroll.position().top;
                            scroll.animate({
                                'top': top + o.speed
                            }, {
                                duration: 0.01,
                                easing: 'linear'
                            })
                            e.preventDefault();
                        }; //end animatedown function
                        //if key up arrow
                        if (e.keyCode == 38) {
                            animatedown();
                            e.preventDefault();
                        }
                        //if key down arrow
                        else if (e.keyCode == 40) {
                            animateup();
                            e.preventDefault();
                        };
                    }); //end keydown function
                }; // end vertical keypress function
            } //end if vertical
            // start horizontal option
            if (options.direction == 'horizontal') {
                //vars
                var thisw = plake.width();
                var thish = plake.height();
                var thisx = plake.position().left;
                var thisy = plake.position().top;
                //set hover buttons css
                plake.find('.hovtopleft').css({
                    'top': '0px',
                    'right': '0px',
                    'width': o.triggersize + 'px',
                    'height': thish
                });
                plake.find('.hovbottomright').css({
                    'left': '0px',
                    'top': '0px',
                    'width': o.triggersize + 'px',
                    'height': thish
                });
                //hoverleft function
                plake.find('.hovtopleft').hover(function () {
                    scroll.stop();
                    var left = scroll.position().left;
                    //animate loop function scrollleft
                    (function scrollleft() {
                        if (scroll.position().left <= '-' + (scroll.width() - plake.width())) { // if position is less than or equal to -172
                            var thisl = scroll.position().left; // create temp variable thisl
                            scroll.stop(); //stop scroll
                            scroll.css({ 
                                'left': ('-130px') //thisl = -172 - 10
                            })
                        }; 
                        var left = scroll.position().left;
                        scroll.animate({
                            'left': left - o.speed
                        }, {
                            duration: 0.01, 
                            easing: 'linear',
                            complete: scrollleft
                        })
                    })();
                }, function () {
                    var thisleft = scroll.position().left;
                    //animate scroll out
                    scroll.animate({
                        'left': thisleft + o.traildist
                    }, {
                        duration: o.trailspeed,
                        easing: o.traileasing,
                        queue: 'true'
                    });
                }); //end hover left
                plake.find('.hovbottomright').hover(function () {
                    scroll.stop();
                    var left = scroll.position().left;
                    //animate loop function scrollright
                    (function scrollright() {
                        if (scroll.position().left >= 0) {
                            var thisl = scroll.position().left;
                            scroll.stop();
                            scroll.css({
                                'left': '0px'
                            })
                        };
                        var left = scroll.position().left;
                        scroll.animate({
                            'left': left + o.speed
                        }, {
                            duration: 0.01,
                            easing: 'linear',
                            complete: scrollright
                        })
                    })();
                }, function () {
                    var ul = '#spinwrap ul';
                    var thisleft = scroll.position().left;
                    // animate scroll out
                    if (scroll.position().left <= '-' + o.traildist) {
                        var thisl = scroll.position().left;
                        scroll.animate({
                            'left': thisleft - o.traildist
                        }, {
                            duration: o.trailspeed,
                            easing: o.traileasing,
                            queue: 'true'
                        });
                    };
                }); //end hover right
                //vertical up and down keypress function
                if (options.keypress == 'true') {
                    $(document).keydown(function (e) {
                        //if key left arrow
                        if (e.keyCode == 37) {
                            scroll.stop();
                            if (scroll.position().left <= '-' + (scroll.width() - plake.width())) {
                                var thisl = scroll.position().left;
                                scroll.stop();
                                scroll.css({
                                    'left': (thisl - 10)
                                })
                            };
                            var left = scroll.position().left;
                            scroll.animate({
                                'left': left - o.speed
                            }, {
                                duration: 0.01,
                                easing: 'linear'
                            })
                            e.preventDefault();
                        }
                        // if key right
                        else if (e.keyCode == 39) { // right
                            scroll.stop();
                            if (scroll.position().left >= 0) {
                                var thisl = scroll.position().left;
                                scroll.stop();
                                scroll.css({
                                    'left': '0px'
                                })
                            };
                            var left = scroll.position().left;
                            scroll.animate({
                                'left': left + o.speed
                            }, {
                                duration: 0.01,
                                easing: 'linear'
                            })
                            e.preventDefault();
                        };
                    });
                };
            } //end if horizontal
        }); //end return each
        $(window).resize(function (e) {
            docWidth = $(window).width()
            docHeight = $(window).height()
        });
    }; //end each
})(jQuery)