function openPopUp(url, name) {
    var optionList = "menubar=no,width=800,height=600,top=100,left=100,toolbar=no,resizable=0,fullscreen=0";
    window.open(url, name, optionList);
}

(function($) {

    $.fn.easySlider = function(options) {

        // default configuration properties
        var defaults = {
            prevId:         'prevBtn',
            prevText:         'Previous',
            nextId:         'nextBtn',
            nextText:         'Next',
            controlsShow:    true,
            controlsBefore:    '',
            controlsAfter:    '',
            controlsFade:    true,
            firstId:         'firstBtn',
            firstText:         'First',
            firstShow:        false,
            lastId:         'lastBtn',
            lastText:         'Last',
            lastShow:        false,
            vertical:        false,
            speed:             800,
            auto:            false,
            pause:            4400,
            continuous:        false
        };

        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();
            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.vertical) $("li", obj).css('float', 'left');

            if (options.controlsShow) {
                var html = options.controlsBefore;
                if (options.firstShow) html += '<span class="' + options.firstId + '"><a href="#">' + options.firstText + '</a></span>';
                html += ' <span class="' + options.prevId + '"><a href="#">' + options.prevText + '</a></span>';
                html += ' <span class="' + options.nextId + '"><a href="#">' + options.nextText + '</a></span>';
                if (options.lastShow) html += ' <span class="' + options.lastId + '"><a href="#">' + options.lastText + '</a></span>';
                html += options.controlsAfter;
                $(obj).append(html);
            }

            $("." + options.nextId + " a", obj).click(function() {
                animate("next", true);
                return false;
            });
            $("." + options.prevId + " a", obj).click(function() {
                animate("prev", true);
                return false;
            });
            $("." + options.firstId + " a", obj).click(function() {
                animate("first", true);
                return false;
            });
            $("." + options.lastId + "a", obj).click(function() {
                animate("last", true);
                return false;
            });

            function animate(dir, clicked) {
                var ot = t;
                var p;
                switch (dir) {
                    case "next":
                        t = (ot >= ts) ? (options.continuous ? 0 : ts) : t + 1;
                        break;
                    case "prev":
                        t = (t <= 0) ? (options.continuous ? ts : 0) : t - 1;
                        break;
                    case "first":
                        t = 0;
                        break;
                    case "last":
                        t = ts;
                        break;
                    default:
                        break;
                }

                var diff = Math.abs(ot - t);
                var speed = diff * options.speed;
                if (!options.vertical) {
                    p = (t * w * -1);
                    $("ul", obj).stop().animate(
                    { marginLeft: p },
                            speed
                            );
                } else {
                    p = (t * h * -1);
                    $("ul", obj).stop().animate(
                    { marginTop: p },
                            speed
                            );
                }

                if (!options.continuous && options.controlsFade) {
                    if (t == ts) {
                        $("." + options.nextId + " a", obj).hide();
                        $("." + options.lastId + " a", obj).hide();
                    } else {
                        $("." + options.nextId + " a", obj).show();
                        $("." + options.lastId + " a", obj).show();
                    }
                    if (t == 0) {
                        $("." + options.prevId + " a", obj).hide();
                        $("." + options.firstId + " a", obj).hide();
                    } else {
                        $("." + options.prevId + " a", obj).show();
                        $("." + options.firstId + " a", obj).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.continuous && options.controlsFade) {
                $("." + options.prevId + " a", obj).hide();
                $("." + options.firstId + " a", obj).hide();
            }

        });

    };

})(jQuery);

$(document).ready(function() {
    var sliders = $(".slider");
    if (sliders.length > 0) {
        sliders.easySlider({
            auto: true,
            continuous: true
        });
    }
});