select onchange没用

javascript与java代码混成一片................
java代码是在服务器处理
javascript是在浏览器处理
代码逻辑错错错

解决方案 »

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静态页是这样的
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="zh-CN">
  <head>


    <title>register.jsp</title>
<link rel="stylesheet" type="text/css" media="all" href="calendar-win2k-cold-1.css" title="win2k-cold-1" />
  <script type="text/javascript" src="js/calendar.js"></script>
  <script type="text/javascript" src="js/calendar-zh.js"></script>
  <script type="text/javascript" src="js/calendar-setup.js"></script>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">


  </head>
  <body>
  <script language="JavaScript" >
function updateCity(selectProvince)
{
bean.Sql sql=new Sql();
sql.setSql("select * from city where province='"+selectProvince+"'");
java.sql.ResultSet set=sql.content();
int i=0;
while(set.next()){
document.registerForm.city.options[i]=new Option(set.getString(1),set.getString(2));
i++;
}
}

</script>
  <form name="registerForm" method="POST" action="/zone/register.do"><br>
  <table width="50%" height="50%" border="1" align="center">
<tbody><tr>
<td width=‘40%’ align=center> 用户名：</td>
<td> <input type="text" name="name" value=""></td></tr>
<tr>
<td width=‘40%’ align=center> 密码：</td>
<td> <input type="password" name="password" value=""></td></tr>
<tr>
<td width=‘40%’ align=center> 重复密码：</td>
<td> <input type="password" name="repassword" value=""></td></tr>
<tr>
<td width=‘40%’ align=center> 出生时间：</td>
<td>
<input type="text" name="bth" size="20" value="2007-8-9" id="birthday"><input type="reset"  value="..."
onclick="return showCalendar('birthday','y-m-d');"></td></tr>
<tr>
<td width=‘40%’ align=center> 地址：</td>
<td>
<select  name="province" onchange="updateCity(this.options[this.options.selectedIndex].value)" >
<option value=01>北京      </option><option value=02>上海      </option><option value=03>重庆      </option><option value=04>浙江      </option><option value=05>广东      </option></select>
<select name="city" multiple="multiple" size="1"></select>
</td></tr>
<tr>
<td  ><input type="submit" name="submit" value="提交"></td>
<td ><input type="reset" name="reset" value="重置"></td></tr>
</tbody></table><br><br><br><br >
</form>    </body>
</html>
提示65行缺少对象即
<select  name="province" onchange="updateCity(this.options[this.options.selectedIndex].value)" >
onchange="updateCity(this.options[selectedIndex].value)" 这样试试
发现缺少对象是由于javascript里的function 函数错误造成的
请问各位大侠，这么实现连接数据库的两级省市菜单
不刷新全页只能AJAX实现吗
晕怎么里面有java啊?这错误可太低级了