How to use request.setAttribute in javascript function.

Question

Here is my scenario.
I am storing all open windows handles in the array( javascript ).
I want to send this array to the servlet for which I need to do
request.setAttribute("jsArray", windowArray);
I am getting all kinds of errors while writing above statement in the javascript function.
Here is my code:
function save_javascript_array(){
<% request.setAttribute("jsArray", %> + winArray + <% ); %>
document.forms[0].action="/NASApp/inv/AuditServlet";
document.forms[0].submit();
Thanks in advance.

Answer 1

try something like this:
crate a JavaScript function that set a form parameter with the values contained in the array, for example make a string containing all elements of the array separated by colon (,):
function save_javascript_array()
var data;
data = '';
for( var i=0;i<winArray.length;i++ )
data = data + winArray[i] + ',';
document.forms[0].handles.value = data;
document.forms[0].action="/NASApp/inv/AuditServlet";
document.forms[0].submit();
you must have a form like this:
<form ...>
<input type="hidden" name="handles">
</form>
Now in the servlet you must retirve the parameter called "handles" and iterate over the string:
StringTokenizer tok = new StringTokenizer( request.getParameter("handles"),"," );
while( tok.hasMoreElements() )
String handle = tok.nextToken( );
// do something with this handle...
The code above may be different (I don't remember the names of the methods os StringTokenizer) and I don't known much about JavaScript (e.i. how to iterate over a array and how to concatenate each element in the array)
JaimeS