How to stop 'refresh' button from 'submitting' in advance?

Hi,
I am trying to create a web page that shows a list of records to be updated individually by a click of its button.
I realised that the records are 'updated' again when the page is refreshed!
Basically the codes are like this:
html>
<title>Activate Users</title>
<head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></head>
<link rel="stylesheet" type="text/css" href="stylesheet.css">
<body bgcolor="#FFFFFF">
     <Form name= "activate" action="./activated.jsp" METHOD="GET">
<%try{ %>
     <%@ include file="./connect/makeCon.jsp" %>
<TABLE BORDER=1 width="75%" border="1">
<TR><TH>Userid</TH><TH>Name</TH><TH>Status</TH><TH>Activate</TH></TR>
<%
     PreparedStatement stmtt = ocon.prepareStatement("Select * from studentacct where studentacct_status=?");
stmtt.setInt(1,2);
     ResultSet rc = stmtt.executeQuery();
%>
<%
while(rc.next()){
     String userid=rc.getString("studentacct_userid");//column names must be exactly the same as that in the database.a
String name=rc.getString("studentacct_name");
int status=rc.getInt("studentacct_status");
%>
     <TR><TD><%out.println(""+userid);%></TD>
<TD><%out.println(""+name);%> </TD>
<TD><%out.println(""+status);%></TD>
<TD><INPUT TYPE="Submit" VALUE="Activate"></TD>
</TR>
     <%     PreparedStatement stmtt2 = ocon.prepareStatement
                              ("UPDATE studentacct set studentacct_status=? where studentacct_status=2");
stmtt2.setInt(1,1);
          ResultSet rc2 = stmtt2.executeQuery();
     } %>
</TABLE>
<BR>
<%@ include file="./connect/closeCon.jsp" %>
<%     }catch(Exception e){
          System.out.println(e.getMessage());
          e.printStackTrace();
%>
<BR>
<%@ include file="footer.jsp" %>
</body>
<script language="JavaScript">

</script>
</html>
The connection to the database is succesful, but I am not sure if I should use Javascript or is there something wrong with my codes ?
Please help thanks!

First, tou have several items from the select statement, right? So you have several rows in the table, all with a submit button. When you click the submit button, how do you know what submit button was clicked? There is nothing in that code that would let you know what button for what row was picked. So that is one problem. Without solving that problem you can't handle anything else.
You can do one of two things:
1) Make each row, or each button table cell, a form where you have a hidden field that contains some identifying info so you know which thing you are submitting.
2) Use one select button for the whole table and have radio buttons or checkboxes to allow selection of which to submit.
Then on the server side, the page the form submits to should check that the form values were submitted and if so, do the DB updates.
Second, there is no need to be running an update statement for each item selected (in the loop of DB rows). If you do like I mentioned above, you can get rid of that part.

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