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

        speed: 200,
        easing: null,

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

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

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

        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;
        
        //var items = $(".bigs_detail_slider_content ul li.item img");
        var items = $(".bigs_detail_slider_content ul li.item");

        if(o.circular) {
            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.each ( function (i){
            $(this).removeClass("active");
            //if ( i == curr )
            //    $(this).addClass("active");
        });
        */

        //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

        //Кнопка перехода к предыдущему слайду
        if(o.btnPrev)
            $(o.btnPrev).click(function() {
                var link = $(items[curr]).attr('ref_prev');

                if ( (curr == 0) && ( link != ""  ))
                    //window.location( link );
                    window.location.replace(link);
                else
                    return go(curr-o.scroll, 1);
            });

        //Кнопка перехода к следующему слайду
        if(o.btnNext)
            $(o.btnNext).click(function() {
                var link = $(items[curr]).attr('ref_next');
                
                if ( (curr == items.size()-1  ) && ( link != ""  ))
                    window.location.replace(link);
                    //alert( link );
                else
                    return go(curr+o.scroll, 1);
            });

        if(o.btnGo)
            $.each(o.btnGo, function(i, val) {
                $(val).mousedown(function() {
                    return go(o.circular ? o.visible+i : i, 0);
                });
            });

        if(o.mouseWheel && div.mousewheel)
            div.mousewheel(function(e, d) {
                return d>0 ? go(curr-o.scroll, 1) : go(curr+o.scroll, 1);
            });

        if(o.auto)
            setInterval(function() {
                go(curr+o.scroll, 1);
            }, o.auto+o.speed);

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

        function go(to, mode) {
                
                if (mode == null ) mode = 0;
                
                show_slide_image( to   );   //текущая       картинка
                show_slide_image( to-1 );   //предыдущая    картинка
                show_slide_image( to+1 );   //следующая     картинка

            //if(!running) {
                    
                if(o.beforeStart)
                    o.beforeStart.call(this, vis(), curr);

                /*
                if(o.circular) {            // If circular we are in first or last, then goto the other end
                    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 ? iteemLength-(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;
                } else {                    // If non-circular and to points to first or last, we just return. */
                    if(to<0 || to>itemLength-v) return;
                    else curr = to;
                //}                           // If neither overrides it, the curr will still be "to" and we can proceed.

                running = true;

                
                if (mode == 1)
                {
                //Красивая перемотка
                    ul.stop().animate(
                        animCss == "left" ? { left: -(curr*liSize) } : { top: -(curr*liSize) } , o.speed, o.easing,
                        function() {
                            if(o.afterEnd)
                                o.afterEnd.call(this, vis(), curr);
                            running = false;
                        }
                    );
                }
                else
                {
                //Просто переключение слайдов
                    ul.css({ 'left' : -(curr*liSize) });
                    if(o.afterEnd)
                        o.afterEnd.call(this, vis(), curr);
                    running = false;
                
                }
                
                // Disable buttons when the carousel reaches the last/first, and enable when not
                //Гасим кнопки если совпадает условие
                highlight();

            //}
            
            return false;
        };
        
        /*
        // workaround to make go function accesible
        $.extend(jQuery(this).get(0), {
            showCarouselElement : function(index) {
                if (!running) {
                    go(new Number(index));
                        return true;
                    }
                        return false;
                }
        });
        */
        function highlight()
        {
            
            if(!o.circular) {
                $(o.btnPrev + "," + o.btnNext).removeClass("disabled");
                $( (curr-o.scroll<0 && o.btnPrev)
                    ||
                   (curr+o.scroll > itemLength-v && o.btnNext)
                    ||
                   []
                 ).addClass("disabled");
                 
                 // Отрабонка кнопки перехода к предыдущему продукту
                 if ( (curr == 0 ) && ( $(items[curr]).attr('ref') != "") )
                 {
                    $(o.btnPrev).removeClass("disabled");
                 }
                 
                 // Отрабонка кнопки перехода к предыдущему продукту
                 if ( (curr == items.size()-1 ) && ( $(items[curr]).attr('ref') != "") )
                 {
                    $(o.btnNext).removeClass("disabled");
                 }
                 
            }
            
        };
        
        function show_slide_image( num )
        {
            
            
            var slide = $('.bigs_detail_slider_content .e'+(num+1)+' img');
            var slide_height = $('.bigs_detail_slider_content li.e'+(num)).css('height');
            
            $('.bigs_detail_slider_content').css({'height':slide_height});
            
            //document.title = slide_height;
            
            if ( slide.length >0 )
            {
                var lnk = slide.attr('link');
                var src = slide.attr('src');
                
                if ( src != lnk )
                    slide.attr({'src': lnk });
            }
            
            return false;
        }
        
       //Гасим кнопки если совпадает условие
       highlight();
    });
   
   

};



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);