year getting null?

In this code, the year value is getting null.. why is it so? Am not able to insert the date, as the year value is getting null?
where should i change the year value, to get the user selected year??

<%@ page import="java.util.List"%>
<%@page import="java.sql.*, java.util.*, java.text.*" %> 
<%@page import="java.sql.Connection, java.sql.DriverManager,java.sql.ResultSet,java.sql.SQLException" %>
 
<html> 
<head>
<title>Print a month page.</title>
<meta name="version">
 
<script>
var lastId = "";
var curId  = "";
 
function selectDate(f)
 {
if(document.forms[0].lastDateId != null) 
{
lastId = document.forms[0].lastDateId.value;
}

if(lastId != document.forms[0].todayId.value) 
{
  if(document.getElementById(lastId).title == "") 
  {
   document.getElementById(lastId).style.backgroundColor='white';
  }
}

if(f.id != document.forms[0].todayId.value) 
  {
   document.getElementById(f.id).style.backgroundColor='blue';
        }

if(list != null) 
{
String dateDescrList[] = list.split(",");

for(int i=0;i<dateDescrList.length;i++) 
{
String listObj = dateDescrList[i];
             if(!listObj.equals("") || !listObj.trim().equals("")) 
{
                 date= year+"-"+listObj.substring(0,listObj.indexOf(":"));
descr = listObj.substring(listObj.indexOf(":")+1);
 
out.println("date is : "+date);
out.println("description is : "+descr);
                 }
 
String query  = "insert into Holiday(HolidayDate, Description) VALUES (?, ?)";
              
         PREPstmt1=con.prepareStatement(query);
               PREPstmt1.setString(1,date);
                 PREPstmt1.setString(2,descr);
                 PREPstmt1.executeUpdate(); 
          }
        }
}
   
catch(Exception e)
 {
      System.err.println("Exception: " + e.getMessage());
 }
 finally 
{
       try 
     {
        if(con != null)
          con.close();
     } 
      catch(SQLException e) 
     {
     }
}
%>
 
<%
       Calendar c = Calendar.getInstance( );
 
boolean yyok = false;
int yy = 0, mm = 0;
 
String yyString = String.valueOf(c.get(Calendar.YEAR)); //setting calendar with current year
 
String STyear = request.getParameter("year");  //to get selected year
 
 if(STyear != null)  //If an year is selected, then set that year. Else Current Year
 {
  yyString=STyear;
 }  
 
if (yyString != null && yyString.length() > 0)
 {
try
   {
   yy = Integer.parseInt(yyString);
         yyok = true;
        } 
 
         catch (NumberFormatException e)
       {
       out.println("Year " + yyString + " invalid");
      }
     }
 
if (!yyok)yy = c.get(Calendar.YEAR);    
mm = c.get(Calendar.MONTH);
String todayId = "";
%>
 
<form method=get action="CalendarPage.jsp">
 
Enter Year : <select name="year">
<%

for(int i=2000;i<=2015;i++)
{
 
if(i==Integer.parseInt(yyString))
{
%>
<OPTION SELECTED= <%=i%> > <%=i%> </option>
 
<%
}
else
{
%>
<OPTION VALUE= <%=i%> > <%=i%> </option> 
%>          
<%           
}
}
%>
</select>

[ March 31, 2006: Message edited by: Bear Bibeault ]

There is no submit button ,no onchange on select box,When is your form submitted and how do u get null value?

-Praful

Oh Okay got it now;
your code of inserting data should get executed only after page is submited put an if statement as follows

Connection con = null;
response.setContentType("text/html");
[BOLD]if(request.getParameter("SUMBIT_BUTTON__NAME")!=null)[/BOLD]
{
 
    try 
      {
           String driverName = "com.mysql.jdbc.Driver"; 
       Class.forName(driverName);
    
            String serverName = "192.168.10.5";
        String mydatabase = "Trainees";
        String url = "jdbc:mysql://" + serverName +  "/" + mydatabase; 
        String username = "venkat";
        String password = "venkat";
        con = DriverManager.getConnection(url, username, password);
        
        Statement stmt = null;
        ResultSet rset  = null;
        PreparedStatement PREPstmt1;
 
        stmt = con.createStatement();
 
      String year = request.getParameter("year");
      out.println("year value is : "+year);
 
      String date="",descr="";
String list = request.getParameter("list");

if(list != null) 
{
String dateDescrList[] = list.split(",");

for(int i=0;i<dateDescrList.length;i++) 
{
String listObj = dateDescrList[i];
             if(!listObj.equals("") || !listObj.trim().equals("")) 
{
                 date= year+"-"+listObj.substring(0,listObj.indexOf(":"));
descr = listObj.substring(listObj.indexOf(":")+1);
 
out.println("date is : "+date);
out.println("description is : "+descr);
                 }
 
String query  = "insert into Holiday(HolidayDate, Description) VALUES (?, ?)";
              
         PREPstmt1=con.prepareStatement(query);
               PREPstmt1.setString(1,date);
                 PREPstmt1.setString(2,descr);
                 PREPstmt1.executeUpdate(); 
          }
        }
}
   
catch(Exception e)
 {
      System.err.println("Exception: " + e.getMessage());
 }
 finally 
{
       try 
     {
        if(con != null)
          con.close();
     } 
      catch(SQLException e) 
     {
     }
 }
}

[ March 31, 2006: Message edited by: Praful Thakare ]