Passing values between ajax and servlet

Hi,
This is taking me nowhere and i'd wish someone could point out my mistakes.
Here are the files i've created,
MyForm.jsp: contains a dropdownlist and a text input, and AJAX function to call MyServlet
MyServlet servlet: access db to retrieve data to fill up MyForm text input
Required action+ User selects an option from dropdownlist to fill up textfield
Expected result+ textfield displays "my result"
Actual result+ textfield displays "my result<space><space>" (with extra two blank spaces!!!)
No matter how long the expected result is, it'd append 2 blank spaces at the rear of xmlHttp.responseText.
I'm having the following codes in AJAX,
     var url="/MyApp/servlet/MyServlet";
     url=url +"?param="+ document.form1.menu.value;
     xmlHttp.onreadystatechange=stateChanged;
     xmlHttp.open("POST",url,true);
     xmlHttp.send(null);
}and return the result from servlet as follows
public void doGet(HttpServletRequest req, HttpServletResponse res) throws Exception {
     //select record from db based on param, and
     //save as myresult
     out.println(myresult);
public void doPost(HttpServletRequest req, HttpServletResponse res) throws Exception{
     doGet(req,res);
}Any idea?
/z

alright, guys. i spotted my mistake. jesus, how could i overlooked it!
just replace out.println with out.print()
i didn't realize the carriage return.

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