(function ($) { // Compliant with jquery.noConflict()
    $.fn.autocarousel = function (o) {
        o = $.extend({
            btnPrev: null,
            btnNext: null,
            btnGo: null,
            mouseWheel: false,
            auto: null,

            speed: 200,
            easing: null,

            pause: true,

            vertical: false,
            visible: 3,
            start: 0,
            scroll: 1,

            beforeStart: null,
            afterEnd: null
        },
        o || {});

        // Returns the element collection. Chainable.
        return this.each(function () {

            var running = false,
				animCss = o.vertical ? "top" : "left",
				sizeCss = o.vertical ? "height" : "width";
            var div = $(this),
                ul = $("ul", div),
                tLi = $("li", ul),
                tl = tLi.size(),
                v = o.visible;

            ul.prepend(tLi.slice(tl - v - 1 + 1).clone()).append(tLi.slice(0, v).clone());
            o.start += v;

            var li = $("li", ul),
                itemLength = li.size(),
                curr = o.start;
			
            div.css("visibility", "visible");

            li.css({
                overflow: "hidden",
                float: o.vertical ? "none" : "left"
            });
			
            ul.css({
                margin: "0",
                padding: "0",
                position: "relative",
                "list-style-type": "none",
                "z-index": "1"
            });
			
            div.css({
                overflow: "hidden",
                position: "relative",
                "z-index": "2",
                left: "0px"
            });
			
			

            var liSize = o.vertical ? height(li) : width(li); // Full li size(incl margin)-Used for animation
            var ulSize = liSize * itemLength; // size of full ul(total length, not just for the visible items)
            var divSize = liSize * v; // size of entire div(total length for just the visible items)
            li.css({
                width: li.width(),
                height: li.height()
            });
            ul.css(sizeCss, ulSize + "px").css(animCss, -(curr * liSize));

            div.css(sizeCss, divSize + "px"); // Width of the DIV. length of visible images

            if (o.pause) {
                div.hover(

                function () {
                    div.addClass("paused");
                },

                function () {
                    div.removeClass("paused");
					go(curr + o.scroll);
                });
            }

            /*setInterval(function () {
                running = checkIfPaused(o);
                go(curr + o.scroll);
            },
            o.auto + o.speed);*/
			go(curr + o.scroll);

            function vis() {
				return li.slice(curr).slice(0, v);
            };

            function checkIfPaused(o) {
                if (div.hasClass("paused")) {
                    return true;
                } else {
                    return false;
                }
            };


            function go(to) {
                running = checkIfPaused(o);
				if (!running) {
					
                    if (o.beforeStart) o.beforeStart.call(this, vis());

                    if (to <= o.start - v - 1) { // If first, then goto last
                        ul.css(animCss, -((itemLength - (v * 2)) * liSize) + "px");
                        // If "scroll" > 1, then the "to" might not be equal to the condition; it can be lesser depending on the number of elements.
                        curr = to == o.start - v - 1 ? itemLength - (v * 2) - 1 : itemLength - (v * 2) - o.scroll;
                    } else if (to >= itemLength - v + 1) { // If last, then goto first
                        ul.css(animCss, -((v) * liSize) + "px");
                        // If "scroll" > 1, then the "to" might not be equal to the condition; it can be greater depending on the number of elements.
                        curr = to == itemLength - v + 1 ? v + 1 : v + o.scroll;
                    }
                    else curr = to;
                    
					running = true;

                    ul.animate(
                    animCss == "left" ? {
                        left: -(curr * liSize)
                    } : {
                        top: -(curr * liSize)
                    },
                    o.speed, o.easing, function () {
                        if (o.afterEnd) o.afterEnd.call(this, vis());
                        running = false;
						
						go(curr + o.scroll);
                    });
                }
                return false;
            };
        });
    };

    function css(el, prop) {
        return parseInt($.css(el[0], prop)) || 0;
    };

    function width(el) {
        return el[0].offsetWidth + css(el, 'marginLeft') + css(el, 'marginRight');
    };

    function height(el) {
        return el[0].offsetHeight + css(el, 'marginTop') + css(el, 'marginBottom');
    };

})(jQuery);