(function($){
    $.fn.Caro=function(o){
        o=$.extend({
            btnPrev:null,
            btnNext:null,
            btnGo:null,
            mouseWheel:true,
            auto:null,
            speed:1000,
            easing:"backout",
            vertical:false,
            circular:false,
            visible:2,
            start:0,
            scroll:1,
            beforeStart:null,
            afterEnd:null
        },o||{});
        return this.each(function(){
            var running=false,animCss=o.vertical?"top":"left",sizeCss=o.vertical?"height":"width";
            var div=$(this),dl=$("dl",div),tLi=$("dd",dl),tl=tLi.size(),v=o.visible;
            if(o.circular){
                dl.prepend(tLi.slice(tl-v-1+1).clone()).append(tLi.slice(0,v).clone());
                o.start+=v
            }
            var dd=$("dd",dl),itemLength=dd.size(),curr=o.start;
            div.css("visibility","visible");
            dd.css({
                overflow:"hidden",
                float:o.vertical?"none":"left"
            });
            dl.css({
                margin:"0",
                padding:"0",
                position:"absolute",
                "list-style-type":"none"
            });
            div.css({
                overflow:"hidden",
                position:"relative",
                left:"0px"
            });
            var ddSize=o.vertical?height(dd):width(dd);
            var dlSize=ddSize*itemLength;
            var divSize=ddSize*v;
            dd.css({
                width:dd.width(),
                height:dd.height()
            });
            dl.css(sizeCss,dlSize+"px").css(animCss,-(curr*ddSize));
            div.css(sizeCss,divSize+"px");
            if(o.btnPrev)$(o.btnPrev).click(function(){
                return go(curr-o.scroll)
            });
            if(o.btnNext)$(o.btnNext).click(function(){
                return go(curr+o.scroll);
                $(o.btnPrev).removeClass("disabled")
            });
            if(o.btnGo)$.each(o.btnGo,function(i,val){
                $(val).click(function(){
                    return go(o.circular?o.visible+i:i)
                })
            });
            if(o.mouseWheel&&div.mousewheel)div.mousewheel(function(e,d){
                return d>0?go(curr-o.scroll):go(curr+o.scroll)
            });
            if(o.auto)setInterval(function(){
                go(curr+o.scroll)
            },o.auto+o.speed);
            function vis(){
                return dd.slice(curr).slice(0,v)
            };

            function go(to){
                if(!running){
                    if(o.beforeStart)o.beforeStart.call(this,vis());
                    if(o.circular){
                        if(to<=o.start-v-1){
                            dl.css(animCss,-((itemLength-(v*2))*ddSize)+"px");
                            curr=to==o.start-v-1?itemLength-(v*2)-1:itemLength-(v*2)-o.scroll
                        }else if(to>=itemLength-v+1){
                            dl.css(animCss,-((v)*ddSize)+"px");
                            curr=to==itemLength-v+1?v+1:v+o.scroll
                        }else curr=to
                    }else{
                        if(to<0||to>itemLength-v)return;else curr=to
                    }
                    running=true;
                    dl.animate(animCss=="left"?{
                        left:-(curr*ddSize)
                    }:{
                        top:-(curr*ddSize)
                    },o.speed,o.easing,function(){
                        if(o.afterEnd)o.afterEnd.call(this,vis());
                        running=false
                        $(window).scroll();
                    });
                    if(!o.circular){
                        $(o.btnPrev+","+o.btnNext).removeClass("disabled").fadeIn(1000);
                        $((curr-o.scroll<0&&o.btnPrev)||(curr+o.scroll>itemLength-v&&o.btnNext)||[]).addClass("disabled").fadeOut(1000)
                    }
                }
                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);

$.easing.backout = function(x,t,b,c,d){
    var s=1.70158;
    return c*((t=t/d-1)*t*((s+1)*t+s)+1)+b
}