Passing parameters without modifying the URI

Hi All,
I am working on a web application which is intended to run on the BlackBerry. I have one Servlet which I use to redirect the application for the appropriate action, for the purpose of keeping the URI the same. I do this because the users do not want the ability to be able to click back and return to previous pages of the app. The problem I am having is that I have a JSP page in which I have a hyperlink which calls the Servlet, but I need to pass two parameters. Currently I do this:
<a href="<%= SERVLET_PATH %>/myServlet?param1=value1&param2=value2 ">Some text</a>
If javascript were an option I would do:
<FORM NAME="myform" METHOD="post" ACTION="<%= SERVLET_PATH %>/myServlet">
<INPUT TYPE="hidden" NAME="param1" VALUE="value1">
<INPUT TYPE="hidden" NAME="param2" VALUE="value2">
<A HREF="javascript:document.myform.submit()>Some text</A>
</FORM>
Unfortunately the users do not have BlackBerry devices that are javascript enabled. Is there any way to achieve this without appending the parameters to the url?
Thanks in advance,
Denise

Hi John,
Thanks for your reply. Unfortunately we do not want to use input buttons because on the BlackBerry the interface is too limited by size and this causes extra scrolling. It's silly, I know, but not an option for us at this time. The BlackBerry users are resistant to do any extra clicks and rolls of the track wheel.
Denise

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Passing parameters without modifying the URI

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