Trying to read a textfile with AJAX and Caching

Hello all,
I have a simple jsp that utilizes ajax to read the contents of a text file<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="java.util.*,java.io.*"%>
<%
    Date date = new Date();
    String dateString = date.toString();
%>
<html lang="en" dir="ltr">
<head>
    <meta http-equiv="refresh" content="20" url="ajax.jsp?ms='<%=date.getTime()%>'">
    <META HTTP-EQUIV="EXPIRES" CONTENT="-1">
    <META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE">
    <META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    <title>Example</title>
<script type="text/javascript"></script>
</head>
<body onload="ajaxRead('logger/Jan26EventLog.txt'); this.style.display='none'; return false">
    <pre>
    <textarea rows="8" cols="26" id="ta" name="ta">
    </pre>
</body>
</html>This works fine but the file that I am reading is a log file so it changes frequently. The problem I am having is that as the text file changes each subsequent ajax request to the file results in the original contents of the text file and not the new updated (appended) contents of the text file.
Even after many many ajax requests still the original contents. As you can see I have done all I can to prevent caching(that I know of). If I close the browser and relaunch I get the most current version of the text file.
I am using netbeans 5 and the built in version of tomcat. Is there a setting in the server.conf file that will prevent caching? Is there something in the code that is wrong?
I am at wits end with this problem so any advice is greatly appreciated.
TIA!

I have it partially figured out.
This is just temporary (afa the refresh goes), in the future I will use ajax to pull the data without a refresh.
The problem was here:
xmlObj.send (' ');//I had this
xmlObj.send (false);//I needed this.The problem I have now is:
I have an event handler that resides in
(project is called agi)
C:\Documents and Settings\gforte\agi\src\java\agi\EventHandler.java
which writes to the log file here:
C:\Documents and Settings\gforte\agi\web\logger\Jan26EventLog.txt
The code on my ajax call that sets the file to read is:
<body onload="ajaxRead('./logger/Jan26EventLog.txt')//calls the ajax function and sets the path to the fileThe page is actually reading the file here:
C:\Documents and Settings\gforte\agi\build\web\logger\Jan26EventLog.txt
which is not updated , or perhaps updated but not frequently enough.
So how do I :
1. read from the build directory path
2.write to a different location and read from that location
3. some other suggestion?
I tried to explicitly set the path to the desired file:
<body onload="ajaxRead('C:\Documents and Settings\gforte\agi\build\web\logger\Jan26EventLog.txt')
but ajax doesnt like this.
TIA!

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