(function($) {

    $.fn.easySlider = function(options) {

        // default configuration properties
        var defaults = {
            initialDelay: 0,
            instantStart: false,
            fastReset: true,
            easing: '',
            prevId: 'prevBtn',
            prevText: 'Previous',
            nextId: 'nextBtn',
            nextText: 'Next',
            controlsShow: false,
            controlsBefore: '',
            controlsAfter: '',
            controlsFade: false,
            firstId: 'firstBtn',
            firstText: 'First',
            firstShow: true,
            lastId: 'lastBtn',
            lastText: 'Last',
            lastShow: false,
            vertical: false,
            speed: 800,
            auto: false,
            pause: 2000,
            continuous: false,
            numeric: false,
            numericId: 'controls',
            IntervelAfterFirstRound: 2000
        };

        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);
            obj.height(h);
            obj.css("overflow", "hidden");
            var ts = s - 1;
            var t = 0;
            var pausecopy = options.pause;
            $("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 + '"><a href=\"javascript:void(0);\">' + options.prevText + '</a></span>';
                    html += ' <span id="' + options.nextId + '"><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 {
                    $("ul", obj).css("margin-left", (t * h * -1));
                }
                clickable = true;
                if (options.numeric) setCurrent(t);
            };
            function changeImage() {
                if (obj.attr('id') == 'slider2') {
                    if ($('.img1').attr('src') == "images/animated-banner/2.gif")
                        $('.img1').attr('src', 'images/animated-banner/6.gif');
                    else
                        $('.img1').attr('src', 'images/animated-banner/2.gif');
                }
                else if (obj.attr('id') == 'slider3') {
                    if ($('.img2').attr('src') == "images/animated-banner/3.gif")
                        $('.img2').attr('src', 'images/animated-banner/8.gif');
                    else
                        $('.img2').attr('src', 'images/animated-banner/3.gif');
                }
                else if (obj.attr('id') == 'slider4') {
                    if ($('.img3').attr('src') == "images/animated-banner/7.gif")
                        $('.img3').attr('src', 'images/animated-banner/4.gif');
                    else
                        $('.img3').attr('src', 'images/animated-banner/7.gif');
                }
                else if (obj.attr('id') == 'slider5') {
                    if ($('.img4').attr('src') == "images/animated-banner/5.gif")
                        $('.img4').attr('src', 'images/animated-banner/1.gif');
                    else
                        $('.img4').attr('src', 'images/animated-banner/5.gif');
                }
            };
            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;		
                            if (ot >= ts) {
                                if (options.continuous) {
                                    options.pause = options.IntervelAfterFirstRound;
                                    t = t + 1;
                                    setTimeout(function() { changeImage(); }, 800);
                                }
                                else {
                                    t = ts;                                    
                                }
                            }
                            else {
                                options.pause = pausecopy;
                                t = 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) {
                        p = (t * w * -1);
                        $("ul", obj).animate(
							{ marginLeft: p },
							{ queue: false, duration: speed, complete: adjust }
						);
                    } else {
                        p = (t * h * -1);
                        $("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);
            //			};
            setTimeout(function() {
                var timeout;
                if (options.auto) {
                    ;
                    timeout = setTimeout(function() {
                        animate("next", false);
                    }, options.pause * ((options.instantStart == true) ? 0 : 1));
                };
            }, options.initialDelay);

            if (options.numeric) setCurrent(0);

            if (!options.continuous && options.controlsFade) {
                $("a", "#" + options.prevId).hide();
                $("a", "#" + options.firstId).hide();
            };

        });

    };

})(jQuery);