时间格式化

Date.prototype.Format = function(fmt){    var o = {        "M+" : this.getMonth()+1,                 //�·�        "d+" : this.getDate(),                    //��        "h+" : this.getHours()%12 == 0 ? 12 : this.getHours()%12, //Сʱ        "H+" : this.getHours(),                   //Сʱ        "m+" : this.getMinutes(),                 //��        "s+" : this.getSeconds(),                 //��        "q+" : Math.floor((this.getMonth()+3)/3), //����        "S"  : this.getMilliseconds()             //����    };    if(/(y+)/.test(fmt))        fmt=fmt.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - RegExp.$1.length));    for(var k in o)        if(new RegExp("("+ k +")").test(fmt))            fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));    return fmt;}