javascript显示中文日期的方法

<script LANGUAGE="JavaScript">
function number(index1){
var numberstring="一二三四五六七八九十";
if(index1 ==0) {document.write("十")}
if(index1 < 10){
document.write(numberstring.substring(0+(index1-1),index1))}
else if(index1 < 20 ){
document.write("十"+numberstring.substring(0+(index1-11),(index1-10)))}
else if(index1 < 30 ){
document.write("二十"+numberstring.substring(0+(index1-21),(index1-20)))}
else{
document.write("三十"+numberstring.substring(0+(index1-31),(index1-30)))}
}
var today1 = new Date()
var month = today1.getMonth()+1
var date = today1.getDate()
var day = today1.getDay()
document.write("<br><strong><small><center>")
document.write("公元二零零零年")
number(month)
document.write("月")
number(date)
document.write("日</small><center>")
</script>