/**
 +-------------------------------------------------------------------
 * jquery fontscroll - ���������ϲ������ - http://java2.sinaapp.com
 +-------------------------------------------------------------------
 * @version    1.0.0 beta
 * @since      2014.06.12
 * @author     kongzhim <kongzhim@163.com> <http://java2.sinaapp.com>
 * @github     http://git.oschina.net/kzm/fontscroll
 +-------------------------------------------------------------------
 */

(function($){
    $.fn.fontscroll = function(options){
        var d = {time: 3000,s: 'fontcolor',num: 1}
        var o = $.extend(d,options);
        

        this.children('ul').addclass('line');
        var _con = $('.line').eq(0);
        var _conh = _con.height(); //�����ܸ߶�
        var _conchildh = _con.children().eq(0).height();//һ�ι����߶�
        var _temp = _conchildh;  //��ʱ����
        var _time = d.time;  //�������
        var _s = d.s;  //�������


        _con.clone().insertafter(_con);//��ʼ����¡

        //��ʽ����
        var num = d.num;
        var _p = this.find('li');
        var allnum = _p.length;

        _p.eq(num).addclass(_s);


        var timeid = setinterval(up,_time);
		this.hover(function(){clearinterval(timeid)},function(){timeid = setinterval(up,_time);});

        function up(){
            _con.animate({margintop: '-'+_conchildh});
            //��ʽ����
            _p.removeclass(_s);
            num += 1;
            _p.eq(num).addclass(_s);
            
            if(_conh == _conchildh){
                _con.animate({margintop: '-'+_conchildh},"normal",over);
            } else {
                _conchildh += _temp;
            }
        }
        function over(){
            _con.attr("style",'margin-top:0');
            _conchildh = _temp;
            num = 1;
            _p.removeclass(_s);
            _p.eq(num).addclass(_s);
        }
    }
})(jquery);