//格林威治時間的轉換
Date.prototype.format = function(format)
{
	var o = {
            "M+" : this.getMonth()+1, //month
            "d+" : this.getDate(), //day
            "h+" : this.getHours(), //hour
            "m+" : this.getMinutes(), //minute
            "s+" : this.getSeconds(), //second
            "q+" : Math.floor((this.getMonth()+3)/3), //quarter
            "S" : this.getMilliseconds() //millisecond
        }
    if(/(y+)/.test(format))
    format=format.replace(RegExp.$1,(this.getFullYear()+"").substr(4 - RegExp.$1.length));
    for(var k in o)
    if(new RegExp("("+ k +")").test(format))
    format = format.replace(RegExp.$1,RegExp.$1.length==1 ? o[k] : ("00"+ o[k]).substr((""+ o[k]).length));
    return format;
}

function chGMT(gmtDate){
	var mydate = new Date(gmtDate);
	mydate.setHours(mydate.getHours() + 8);
	return mydate.format("yyyy-MM-dd hh:mm:ss");
}