/*
* 倒计时插件，主要用来限时购买
* By Skygq 2010年11月30日
* 版本1.0
*/
; (function ($) {
    $.fn.countdown2 = function (options) {
        if (this.length == 0) {
            return false;
        }
        return this.each(function () {
            var Default = {
                Sdate: null, //开始时间（格式为“2010-10-10 10:10:10”）可以设置为服务端的时间
                Edate: null, //结束日期（格式为“2010-10-10 10:10:10”）
                callback: function () {
                    return false;
                }
            },
			_lT = null,
		    _cT = new Date(),
		    _eT = null,
		    _elT = null,
		    ctime = null,
		    etime = null,
		    DomId = null,
		    _timeout = null,
		    _gt = function () {
		        if (_lT == null) {
		            _elT = (etime - ctime);
		            if (_elT < 0) {
		                $('#' + DomId).html("<strong>已利好兑现</strong>");
		            }
		            var _xT = Math.ceil(_elT / (24 * 60 * 60 * 1000));
		            _cT = parseInt(_cT.match(/\s(\d+)\D/)[1] * 3600) + parseInt(_cT.split(":")[1] * 60) + parseInt(_cT.split(":")[2]);
		            _eT = _xT * 24 * 3600 + parseInt(_eT.match(/\s(\d+)\D/)[1] * 3600) + parseInt(_eT.split(":")[1] * 60) + parseInt(_eT.split(":")[2]);
		            _lT = _elT / 1000;
		        }
		        if (_elT > 0) {
		            if (_lT >= 0) {
                       
		                var _H = Math.floor(_lT / 3600);
                        var _D= _H>=24 ? Math.floor(_H / 24):0;
		                var _M = Math.floor((_lT - _H * 3600) / 60);
                        _H=_H-_D*24;
		                var _S = (_lT - _H * 3600) % 60;
		                $('#' + DomId).html("倒计时：还有<strong>"+ _D + "</strong>天<strong>" + _H + "</strong>时<strong>" + _M + "</strong>分<strong>" + _S + "</strong>秒");
		                _lT--;
		            } else {
		                clearInterval(_timeout);
		                if (s.callback && $.isFunction(s.callback)) {
		                    s.callback.call(this);
		                }
		            }
		        } else {
		            clearInterval(_timeout);
		            if (s.callback && $.isFunction(s.callback)) {
		                s.callback.call(this);
		            }
		        }
		    },
			strDateTime = function (str) {//判断日期时间的输入是否正确，类型必须形如为：2010-01-01 01:01:01
			    var reg = /^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
			    var r = str.match(reg);
			    if (r == null) return false;
			    var d = new Date(r[1], r[3] - 1, r[4], r[5], r[6], r[7]);
			    return (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[3] && d.getDate() == r[4] && d.getHours() == r[5] && d.getMinutes() == r[6] && d.getSeconds() == r[7]);
			}
            var s = $.extend({}, Default, options || {});
            DomId = this.id;
            if (DomId == 'null') {
                return;
            }
            _eT = s.Edate;
            if (!strDateTime(_eT)) {
                _eT="2011-01-01  01:01:01";
                return false;
            }
            if (s.Sdate != null) {
                _cT = s.Sdate;
            }
            _cT = _cT.toString();
            cdate = _cT.replace(/-/g, '/');
            _eT = _eT.toString();
            edate = _eT.replace(/-/g, '/');
            ctime = new Date(cdate);
            etime = new Date(edate);
            _timeout = setInterval(_gt, 1000)
        });
    }
})(jQuery);