代碼如下,大蝦幫忙
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=big5">
<script language="">
<!--
function show(beg,count,typestr){
var i,j,def,curr=new Date();
switch(typestr)
{
case 'y':def=curr.getYear();break;
case 'm':def=curr.getMonth();break;
case 'd':def=curr.getDate();break;
}
for (i=0;i<count;i++)
{
j=beg+i;
if (j != def)
document.write('<option value='+j+'>'+j+'</option>');
else
document.write('<option value='+j+' selected>'+j+'</option>');
}
}
function showdate()
{
var i,d,d1,d2,num;
d=document.theform.year_select;
d1=document.theform.month_select;
d2=document.theform.day_select;
num=parseInt(d.options[d.selectedIndex].value);
switch(d1.options[d1.selectedIndex].value)
{
case '4':
case '6':
case '9':
case '11':
d2.length=30;
for(i=0;i<30;i++) d2.options[i].value=i+1;
break;
case '2':
if ((num % 4==0) && (num %100==0))
{
d2.length=29;
for (i=0;i<31;i++) d2.options[i].value=i+1;
}
else
{
d2.length=28;
for(i=0;i<28;i++) d2.options[i].value=i+1;
}
break;
default:
d2.length=31;
for(i=0;i<31;i++) d2.options[i].value=i+1;
break;
}
}
-->
</script>
</head>