ColdFusion.navigate POST v GET in CF8

Hi there,

Simple problem hopefully in need of a simple solution.

I have a page with a single CFDIV bound to a text field. Within that CFDIV is a form which, when submitted, should submit to and then refresh the parent page. I am using ColdFusion.navigate to accomplish this. The problem is that, when it submits the form, it seems to be doing it via GET (the form values all appear in the URL) rather than POST, even though I've specified POST in ColdFusion.navigate.

Parent page:

--------------------------

<cfform action="board-update.cfm" method="post">
  
    <p>Name:
        <cfinput type="text" name="nameText" size="15" maxlength="30" />
    </p>

</cfform>

<cfdiv bind="url:board-add.cfm?nameText={nameText@keyup}"></cfdiv>

board-add.cfm's <cfform> tag:

<cfform action="" id="addForm" "javascript:ColdFusion.navigate('board-update.cfm', null, null, null, 'POST', 'addForm');">

The form processor is on the parent page and is looking for variables in the FORM scope (i.e. POSTed to the page).

What am I doing wrong?