How do I POST a form to a new window?

Use the target attribute on the form, opening a window with that name and your feature string in the onsubmit handler of the FORM.

<form action="" 
      method="post"
      target="wndname" 
      onsubmit="window.open('',this.target);return true;"
>

• http://www.htmlhelp.com/reference/html40/forms/form.html

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