(function ($) 
    {
        var vscrollid = 0;
        $.fn.vScroll = function (options)
        {
	 
            var options = $.extend({}, {
                speed: 500,
                height: 300,
                upID: "#up-arrow",
                downID: "#bottom-arrow",
                cycle: true, 
                cutbottomOff: true
            }, options);
            return this.each
            (
                function ()
                {
                    vscrollid++;
                    obj = $(this);
                    var newid = vscrollid;
                    obj.css("overflow", "hidden");
                    obj.css("position", "relative");
                    obj.css("height", options.height + "px");
                    var totalAmount = 0;
                    obj.children().each(function (intIndex) {
                        $(this).addClass("vscroll-" + intIndex)
                        totalAmount++;
                    });
                    var itemCount = 0;
										
                    $(options.downID).click(function () {
                        var nextCount = itemCount + 1;
                        /*
																								Adrian: avoid 2 blank spaces at the bottom of the scroller
																							*/
																							
                        if (totalAmount-3==itemCount && options.cutbottomOff)
                        {
                            itemCount = 0;
                            $("#vscroller-" + newid).animate({
                                top: "0" + "px"
                            }, options.speed);
                        }
                        else if ($('.vscroll-' + nextCount).length)
                        {
                            var divH = $('.vscroll-' + itemCount).outerHeight();
                            itemCount++;
                            $("#vscroller-" + newid).animate({
                                top: "-=" + divH + "px"
                            }, options.speed);
                        }
                        else
                        {
                            if (options.cycle)
                            {
                                itemCount = 0;
                                $("#vscroller-" + newid).animate({
                                    top: "0" + "px"
                                }, options.speed);
                            }
                        }
                    });
										
                    $(options.upID).click(function () {
                        var prevCount = itemCount - 1;
                        if ($('.vscroll-' + prevCount).length)
                        {
                            itemCount--;
                            var divH = $('.vscroll-' + itemCount).outerHeight();
                            $("#vscroller-" + newid).animate({
                                top: "+=" + divH + "px"
                            }, options.speed)
                        }
                    });
                    obj.children().wrapAll("<div style='position: relative; top: 0' id='vscroller-" + vscrollid + "'></div>")
                }
                )
        }
    }
    )(jQuery);