;(function($) {
    $.fn.HomeRotator = function(settings) {
        var config = {
            jqClass: "rotator-jq",
            advance: true, // Auto-advance to next slide. See following two settings.
            advanceInterval: 5000,
            resumeAdvanceTimeout: 15000,
            start: 1,   // Slide to start on.
            transition: "slide",  // false, "fade", or "slide".
            transitionSpeed: 300 // in milliseconds
        };

        if (settings) $.extend(config, settings);

        this.each(function() {
            var cont = $(this);
            var hasNav = InitNav(cont);;
            
            InitSlides(cont);

            if (!hasNav) return;
            
            if (config["advance"]) {
                var i = window.setInterval(function() { Advance(cont); }, config['advanceInterval']);
                cont.data("interval", i);
            }
        });

        return this;

        function InitSlides(cont) {
            
            cont.addClass(config['jqClass']);
            var start = config["start"];
            
            cont.find("ul.slides li:nth(" + (start-1) + ")")
                .siblings()
                    .removeClass("active")
                    .css({ display: "block", opacity: 0})
                    .end()
                .addClass("active");
                
            if (config["transition"] == "slide") {
                var slides = cont.find("ul.slides li");
                var width = slides.outerWidth(true);
                slides.each(function(idx) {
                    var offset = width * (idx - start + 1);
                    $(this).css("left", offset);//.attr("num", idx + 1);
                });  
            }
            
            cont.find("ul.nav li:nth(" + start + ")")
                .siblings()
                    .removeClass("active")
                    .end()
                .addClass("active");
        }
        
        function InitNav(cont) {
            var nav = cont.find("ul.nav");
            if (!nav.length) return false;
            var numSlides = cont.find("ul.slides li").length;
            if (numSlides == 1) {
                nav.remove();
                return false;
            }
            nav.css({ left: -9999, top: -9999, "display": "block"});
            var width = 0;
            nav.children()
                .each(function(idx) {
                    width += $(this).outerWidth(true);
                })
                .click(function(idx) {
                    if (config["advance"]) {
                        var t = cont.data("timeout");
                        window.clearTimeout(t);
                        cont.removeData("timeout");
                        var i = cont.data("interval");
                        if (i) {
                            window.clearInterval(i);
                            cont.removeData("interval");
                        }
                        if (config["resumeAdvanceTimeout"]) {
                            var t = window.setTimeout(function() {
                                var i = window.setInterval(function() {
                                    Advance(cont);
                                }, config['advanceInterval']);
                                cont.data("interval", i);
                            }, config["resumeAdvanceTimeout"]);
                            cont.data("timeout", t);
                        }
                    }
                    if (cont.data("busy") || $(this).hasClass("active")) return false;
                    if ($(this).hasClass("previous")) {
                        Advance(cont, -1);
                    } else if ($(this).hasClass("next")) {
                        Advance(cont);
                    } else {
                        Advance(cont, parseInt($(this).text()));
                    }
                    return false;
                })
                .find("a").css("outline-style", "none");
                

            var padding = Math.floor((nav.innerWidth() - width) / 2);
            nav.css({ left: null, top: null, paddingLeft: padding});

            return true;
        }
        
        function Advance(cont, num) {
            cont = $(cont);
            if (cont.data("busy")) return;
            cont.data("busy", true);
            
            var slide = cont.find("ul.slides li.active");
            var nextSlide;
            if (num == -1) nextSlide = slide.prev();
            else if (!num) nextSlide = slide.next();
            else nextSlide = cont.find("ul.slides li:nth(" + (num - 1) + ")")
            if (!nextSlide.length) {
                if (num == -1) nextSlide = cont.find("ul.slides li:last");
                else nextSlide = cont.find("ul.slides li:first");
            }
            var nav = cont.find("ul.nav li.active");
            var nextNav;
            if (num == -1) nextNav = nav.prev("[class!=previous]");
            else if (!num) nextNav = nav.next("[class!=next]");
            else nextNav = cont.find("ul.nav li:contains(" + num + ")")
            if (!nextNav.length) {
                if (num == -1) nextNav = cont.find("ul.nav li:nth(" + (cont.find("ul.nav li").length - 2) + ")")
                else nextNav = cont.find("ul.nav li:nth(1)");
            }
            if (!config["transition"]) {
                slide.css("opacity", 0).removeClass("active");
                nextSlide.addClass("active");
                nav.removeClass("active");
                nextNav.addClass("active");
                nextSlide.css("opacity", 100);
                cont.removeData("busy");
                
            } else if (config["transition"] == "fade") {
                slide.fadeOut("fast", function() {
                    $(slide).removeClass("active");
                    nextSlide.addClass("active");
                    nav.removeClass("active");
                    nextNav.addClass("active");
                    nextSlide.fadeTo(config["transitionSpeed"], 1, function() {
                        if ($.browser.msie) this.style.removeAttribute('filter');
                        cont.removeData("busy");
                    });
                });
            
            } else if (config["transition"] == "slide") {
                var dir = "";
                if (num == -1) dir = "+=";
                else if (!num) dir = "-=";
                else if (parseInt(nav.text()) < parseInt(nextNav.text())) dir = "-=";
                else if (parseInt(nav.text()) > parseInt(nextNav.text())) dir = "+=";

                var width = slide.outerWidth();
                
                nextSlide.addClass("active").css("opacity", 100);
                if ($.browser.msie) nextSlide.get(0).style.removeAttribute('filter');
                
                if (dir == "-=") {
                    nextSlide.css("left", width);
                    
                } else if (dir == "+=") {
                    nextSlide.css("left", width * -1);
                    
                }
                slide.add(nextSlide).animate(
                    { left: dir + width },
                    config["transitionSpeed"],
                    "swing",
                    function() {
                        slide.add(nav).removeClass("active");
                        nextNav.addClass("active");
                        cont.removeData("busy");
                    }
                )
            }
            
        }
    };
})(jQuery);