(function($) {

    $.fn.easySlider = function(options){

        // default configuration properties
        var defaults = {
            prevId:         'prevBtn',
            prevText:       '',
            nextId:         'nextBtn',
            nextText:       '',
            controlsShow:   true,
            controlsBefore: '',
            controlsAfter:  '',
            controlsFade:   true,
            firstId:        'firstBtn',
            firstText:      '',
            firstShow:      false,
            lastId:         'lastBtn',
            lastText:       '',
            lastShow:       false,
            vertical:       false,
            speed:          800,
            auto:           true,
            pause:          4000,
            continuous:     true,
            hoverpause:     true,
            slidelength:    1,
            numeric: false,
            numericId: 'controls',
            addLink: false,
            linkContainer: $(".layer3 a.overflowHref")
        };

        var options = $.extend(defaults, options);

        this.each(function() {
            var obj = $(this);
            var s = $("li", obj).length;
            var w = $("li", obj).width();
            var h = $("li", obj).height();

            var clickable = true;
            obj.width(w*options.slidelength);
            //obj.width(w);
            obj.height(h);
            obj.css("overflow","hidden");
            var ts = s-1;
            var t = 0;
            $("ul", obj).css('width',s*w);

            if(options.continuous){
                $("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
                $("ul", obj).append($("ul li:nth-child(2)", obj).clone());
                $("ul", obj).css('width',(s+1)*w);
            };
            if(!options.vertical) $("li", obj).css('float','left');
            if(options.controlsShow){
                var html = options.controlsBefore;
                if(options.numeric){
                    html += '<ol id="'+ options.numericId +'"></ol>';
                } else {
                    if(options.firstShow) html += '<span id="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
                    html += ' <span id="'+ options.prevId +'" class="prev"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
                    html += ' <span id="'+ options.nextId +'" class="next"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
                    if(options.lastShow) html += ' <span id="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';
                };
                html += options.controlsAfter;
                $(obj).after(html);
            };
            if(options.numeric){
                for(var i=0;i<s;i++){
                    $(document.createElement("li"))
                        .attr('id',options.numericId + (i+1))
                        .html('<a rel='+ i +' href=\"javascript:void(0);\">'+ (i+1) +'</a>')
                        .appendTo($("#"+ options.numericId))
                        .click(function(){
                            animate($("a",$(this)).attr('rel'),true);
                        });
                };
            } else {
                $("a","#"+options.nextId).click(function(){
                    animate("next",true);
                });
                $("a","#"+options.prevId).click(function(){
                    animate("prev",true);
                });
                $("a","#"+options.firstId).click(function(){
                    animate("first",true);
                });
                $("a","#"+options.lastId).click(function(){
                    animate("last",true);
                });
            };
            function setCurrent(i){
                i = parseInt(i)+1;
                $("li", "#" + options.numericId).removeClass("current");
                $("li#" + options.numericId + i).addClass("current");
            };
            function adjust(){
                if(t>ts) t=0;
                if(t<0) t=ts;
                if(!options.vertical) {
                    $("ul",obj).css("margin-left",(t*w*-1));
                } else {
//$("ul",obj).css("margin-left",(t*h*-1));
                }
                clickable = true;
                if(options.numeric) setCurrent(t);
            };

            function animate(dir,clicked){
                if (clickable){
                    clickable = false;
                    var ot = t;
                    switch(dir){
                        case "next":
                            t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;
                            break;
                        case "prev":
                            t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
                            break;
                        case "first":
                            t = 0;
                            break;
                        case "last":
                            t = ts;
                            break;
                        default:
                            t = dir;
                            break;
                    };
                    var diff = Math.abs(ot-t);
                    var speed = diff*options.speed;
                    if(!options.vertical) {
                        //alert(t);
                        //alert(ot);
                        p = (t*w*-1);
                        if(options.addLink){
                            options.linkContainer.attr("href",$("a:eq(" + (t + 1) + ")", obj).attr("href"));
                        }

                        $("ul",obj).animate(
                            { marginLeft: p },
                            { queue:false, duration:speed, complete:adjust }
                        );

                    } else {
                        p = (t*h*-1);
                        if(options.addLink){
                            options.linkContainer.attr("href",$("a:eq(" + (t + 1) + ")", obj).attr("href"));
                        }
                        $("ul",obj).animate(
                            { marginTop: p },
                            { queue:false, duration:speed, complete:adjust }
                        );
                    };

                    if(!options.continuous && options.controlsFade){
                        if(t==ts){
                            $("a","#"+options.nextId).hide();
                            $("a","#"+options.lastId).hide();
                        } else {
                            $("a","#"+options.nextId).show();
                            $("a","#"+options.lastId).show();
                        };
                        if(t==0){
                            $("a","#"+options.prevId).hide();
                            $("a","#"+options.firstId).hide();
                        } else {
                            $("a","#"+options.prevId).show();
                            $("a","#"+options.firstId).show();
                        };
                    };
                    if(clicked) clearTimeout(timeout);
                    if(options.auto && dir=="next" && !clicked){;
                        timeout = setTimeout(function(){
                            animate("next",false);
                        },diff*options.speed+options.pause);
                    };
                };
            };
            // init
            var timeout;
            if(options.auto){
                timeout = setTimeout(function(){
                    animate("next",false);
                },options.pause);
            };

            if(options.hoverpause && options.auto){
                $(this).mouseover(function(){
                    clearTimeout(timeout);
                }).mouseout(function(){
                        timeout = setTimeout(function(){
                            animate("next",true);
                        },options.pause);
                    })
            }
            if(!options.continuous && options.controlsFade){
                $("a","#"+options.prevId).hide();
                $("a","#"+options.firstId).hide();
            };

        });

    };

})(jQuery);