格式日期函数

function dateFormat(date,format) {        var o = {            "M+" : date.getMonth()+1, //month            "d+" : date.getDate(),    //day            "h+" : date.getHours(),   //hour            "m+" : date.getMinutes(), //minute            "s+" : date.getSeconds(), //second            "q+" : Math.floor((date.getMonth()+3)/3),  //quarter            "S" : date.getMilliseconds() //millisecond        }        if(/(y+)/.test(format)) format=format.replace(RegExp.$1,                (date.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;    }