Include tags within a JSP block (making readable code)

Question

I've created a page that includes segments of other pages based upon a condition passed via a parameter. Arg! Let me start over.
My code looks something like this...
<%
   String foo = request.getParameter( "action" );
   if ( foo == null ) {
%>
      <jsp:include page="error.html" flush="true" />
<%
   } else if ( foo.equals( "add" ) ) {
%>
      <jsp:include page="add_user.jsp" flush="true" />
<%
   } else if ( foo.equals( "help" ) ) {
%>
      <jsp:include page="help.html" flush="true" />
<%
   } else {
%>
      <jsp:forward page="display_status.jsp" flush="true" />
<%
%>And obviously, this is kind of hard to read. Is there a way that I can do includes and forwards within the context of the JSP block itself? I'm looking for something like...
<%
   if ( foo == null ) {
      this.include( "error.html", "true" );
   } else if ( foo.equals( "add" ) ) {
      this.include( "add_user.jsp", "true" );
   } ... else {
      this.forward( "display_status.jsp" );
%>...which should hopefully be a lot more readable.

Answer 1

for example
<jsp:include page="text.jsp" flush="true" />
is equivalent to
<% JspRuntimeLibrary.include(request, response, "text.jsp", out, true); %>
ugh...
There should be more simple solution.