怎么使得A下拉菜单对应B下拉菜单的某些数值

[anshenyu]

我的A下拉列表是年份
<OPTION name="year" value="2010">农历庚寅年(公元2010.2.14-2011.2.2)</OPTION>
B是月份 因为某些年份有闰月 有些没有
<OPTION name="month" value="02">二月</OPTION>
<OPTION name="month" value="102">闰二月</OPTION>
怎么用一个JAVA语句使得显示出对应的月来呢

[shan1119]

参考：

<select id="Select1"></select>
<select id="Select2"></select>
<script>
var lunarInfo=new Array(
    0x04bd8,0x04ae0,0x0a570,0x054d5,0x0d260,0x0d950,0x16554,0x056a0,0x09ad0,0x055d2,
    0x04ae0,0x0a5b6,0x0a4d0,0x0d250,0x1d255,0x0b540,0x0d6a0,0x0ada2,0x095b0,0x14977,
    0x04970,0x0a4b0,0x0b4b5,0x06a50,0x06d40,0x1ab54,0x02b60,0x09570,0x052f2,0x04970,
    0x06566,0x0d4a0,0x0ea50,0x06e95,0x05ad0,0x02b60,0x186e3,0x092e0,0x1c8d7,0x0c950,
    0x0d4a0,0x1d8a6,0x0b550,0x056a0,0x1a5b4,0x025d0,0x092d0,0x0d2b2,0x0a950,0x0b557,
    0x06ca0,0x0b550,0x15355,0x04da0,0x0a5d0,0x14573,0x052d0,0x0a9a8,0x0e950,0x06aa0,
    0x0aea6,0x0ab50,0x04b60,0x0aae4,0x0a570,0x05260,0x0f263,0x0d950,0x05b57,0x056a0,
    0x096d0,0x04dd5,0x04ad0,0x0a4d0,0x0d4d4,0x0d250,0x0d558,0x0b540,0x0b5a0,0x195a6,
    0x095b0,0x049b0,0x0a974,0x0a4b0,0x0b27a,0x06a50,0x06d40,0x0af46,0x0ab60,0x09570,
    0x04af5,0x04970,0x064b0,0x074a3,0x0ea50,0x06b58,0x055c0,0x0ab60,0x096d5,0x092e0,
    0x0c960,0x0d954,0x0d4a0,0x0da50,0x07552,0x056a0,0x0abb7,0x025d0,0x092d0,0x0cab5,
    0x0a950,0x0b4a0,0x0baa4,0x0ad50,0x055d9,0x04ba0,0x0a5b0,0x15176,0x052b0,0x0a930,
    0x07954,0x06aa0,0x0ad50,0x05b52,0x04b60,0x0a6e6,0x0a4e0,0x0d260,0x0ea65,0x0d530,
    0x05aa0,0x076a3,0x096d0,0x04bd7,0x04ad0,0x0a4d0,0x1d0b6,0x0d250,0x0d520,0x0dd45,
    0x0b5a0,0x056d0,0x055b2,0x049b0,0x0a577,0x0a4b0,0x0aa50,0x1b255,0x06d20,0x0ada0);
window.onload=function(){
    var sel1=document.getElementById("Select1");
    var sel2=document.getElementById("Select2");
    
    sel1.options.length=0;
    for(var i=1997;i<2012;i++)
        sel1.options[sel1.options.length]=new Option(i,i);
    sel1.onchange=function(){
        var leepM=leapMonth(sel1.value);
        sel2.options.length=0;
        for(var i=1;i<=12;i++){
            sel2.options[sel2.options.length]=new Option(i,i);
            if(i==leepM)sel2.options[sel2.options.length]=new Option("1"+i,"1"+i);
        }
    };
}
function leapMonth(y){
   return(lunarInfo[y-1900]&0xf);
}
</script>

[anshenyu]

谢谢楼上的
但是这个是对公历日期有效地
我想问的是对农历的 正月 二月 这样的有什么方法可以表示吗

[anshenyu]

比如说 公历1949年对应的农历年 没有闰月 那么就在B菜单里面只显示 农历正月到十二月
比如2006年闰七月 则在B下拉菜单里面显示出农历正月到十二月 以及闰七月

[shan1119]

参考：
http://blog.csdn.net/shan1119/archive/2010/05/14/5591364.aspx