function urunTop() {
    this.old = null;
    this.length = $('#urunTop .content ul li').length

    this.toggle = function (ID) {
        if (nrttr.old != null) {
            $('#urunTop .content ul li:eq(' + nrttr.old + ')').removeClass('selected');
        }
        $('#urunTop .content ul li:eq(' + ID + ')').addClass('selected');

        nrttr.old = ID;
    }

    this.swap = function (dir) {
        if (dir == 'next') {
            if (nrttr.old == nrttr.length - 1) {
                nrttr.checkPos(0);
                nrttr.toggle(0);
            } else {
                nrttr.checkPos(nrttr.old + 1);
                nrttr.toggle(nrttr.old + 1);
            }
        }
        if (dir == 'back') {
            if (nrttr.old == 0) {
                nrttr.checkPos(nrttr.length - 1);
                nrttr.toggle(nrttr.length - 1);
            } else {
                nrttr.checkPos(nrttr.old - 1);
                nrttr.toggle(nrttr.old - 1);
            }
        }
    }
    this.checkPos = function (ID) {
        this.imgw = 138;
        this.pos = (ID * -this.imgw) + this.imgw;
        if (this.pos > 0) {
            this.pos = 0;
        }
        if (this.pos < (nrttr.length - 3) * -this.imgw) {
            this.pos = (nrttr.length - 3) * -this.imgw;
        }
        $('#urunTop ul').animate({ left: nrttr.pos + 'px' }, 250);
    }




    $('#urunTop .left').click(function () {
        nrttr.swap('back');
    });
    $('#urunTop .right').click(function () {
        nrttr.swap('next');
    });
    $('#urunTop ul li').hover(function () {
        nrttr.toggle($('#urunTop ul li').index(this));
    });

    if (this.length < 6) {
        $('#urunTop .left').hide();
        $('#urunTop .right').hide();
    }
}
var nrttr = null;
$(document).ready(function () {
    nrttr = new urunTop();
    nrttr.toggle(0);
});