js 得到当前时间(年份月份当前时间当前日期)

<script language="javascript">
<!--
var myDate = new Date();
myDate.getYear(); //获取当前年份(2位)
myDate.getFullYear(); //获取完整的年份(4位,1970-????)
myDate.getMonth(); //获取当前月份(0-11,0代表1月)
myDate.getDate(); //获取当前日(1-31)
myDate.getDay(); //获取当前星期X(0-6,0代表星期天)
myDate.getTime(); //获取当前时间(从1970.1.1开始的毫秒数)
myDate.getHours(); //获取当前小时数(0-23)
myDate.getMinutes(); //获取当前分钟数(0-59)
myDate.getSeconds(); //获取当前秒数(0-59)
myDate.getMilliseconds(); //获取当前毫秒数(0-999)
myDate.toLocaleDateString(); //获取当前日期
var mytime=myDate.toLocaleTimeString(); //获取当前时间
myDate.toLocaleString( ); //获取日期与时间
if (mytime<"23:30:00")
{ // www.osxue.com
alert(mytime);
}
//-->
</script>
today = new Date();

var todayStr = today.getYear() + "-";
if(today.getMonth()<10){
todayStr=todayStr+"0"+today.getMonth();
}
else{
todayStr=todayStr+today.getMonth();
}
 
if(today.getDay()<10){
todayStr=todayStr+"-0"+today.getDay();
}
else{
todayStr=todayStr+today.getDay();
}
todayStr = todayStr +" "
 
if(today.getHours()<10){
todayStr=todayStr+today.getHours();
}
else{
todayStr=todayStr+today.getHours();
}

if(today.getMinutes()<10){
todayStr=todayStr+":0"+today.getMinutes();
}
else{
todayStr=todayStr+":"+today.getMinutes();
}
todayStr = todayStr + ":00";