javascript的疑问????????????
    <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">    
    <title>My JSP 'ddd.jsp' starting page</title>    
	<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">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>  
  <body>         
 <input type="text"   id='time' onchange="appinit()"></input>   
  </body>
 <script   language='javascript'>
 function appinit(){ 
 alert("我在变化");
 }       
  function   getdate()  
  {//时钟函数  
  mydate=new   Date();  
  nowhours=mydate.getHours();  
  nowminiutes=mydate.getMinutes();  
  nowseconds=mydate.getSeconds();  
  nowday=mydate.getDay();  
  weekname=new   Array(7)  
  weekname[1]='星期一';  
  weekname[2]='星期二';  
  weekname[3]='星期三';  
  weekname[4]='星期四';  
  weekname[5]='星期五';  
  weekname[6]='星期六';  
  weekname[0]='星期日';  
  var   now="";  
  if(nowhours<10)  
  nowhours='0'+nowhours;  
  if(nowminiutes<10)  
  nowminiutes='0'+nowminiutes;  
  if(nowseconds<10)  
  nowseconds='0'+nowseconds;  
  now+=nowhours+':'+nowminiutes+':'+nowseconds+weekname[nowday];
  var time=document.getElementById("time");  
  time.value=""+now;    
  setTimeout("getdate()",1000);    
  }  
  getdate();   //触发时钟    
  </script>   
</html>
谁帮我看下 怎么appinit()函数不能触发        求救。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。