How to change the argument input in a jnlp file?

Question

A question associated with the following few lines of jnlp codes:
<application-desc main-class="Main">
<argument>arg</argument>
</application-desc>
My question is: "How can 'arg' be changed dynamically?
Thanks for help.

Answer 1

Thank Dietz for help.
I tried the following jsp code. But it can launch the application only when "test2.jnlp" file exists. "argument to change" can't be passed to the application.
Thanks.
<% response.setContentType("application/x-java-jnlp-file");
out.println("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
out.println("<jnlp ");
out.println("spec=\"1.0+\" ");
out.println("codebase=\"http://tang:8080/examples/rtla/\"");
out.println("href=\"test2.jnlp\">");
out.println("<information> ");
out.println("<title>RTLAFrame viewer</title> ");
out.println("<vendor>XXX, Inc.</vendor> ");
out.println("<description>RTLAviewer Application Demo</description>");
out.println("<description kind=\"short\">A viewer.</description> ");
out.println("<offline-allowed/> ");
out.println("</information> ");
out.println("<security> ");
out.println("<all-permissions/>");
out.println("</security> ");
out.println("<resources> ");
out.println("<j2se version=\"1.3+\"/>");
out.println("<jar href=\"test.jar\"/> ");
out.println("</resources> ");
out.println("<application-desc main-class=\"RTLAFrame\">");
out.println("<argument>argument to change</argument>");
out.println("</application-desc> ");
out.println("</jnlp> ");
%>