VS 2010 WebBrowser Contol - submit form to default/shell web browser?

i have a webbrowser control in my VBForm.
it looks for a website on my site and displays it.

there are form submit buttons in that WebBrowser1.
i would like it to be so that when they click a button in the WebBrowser1 Web page it will open their own browser to the <Form Action= target location.

how do i do this?

EDIT: yes, it's my website. i can change the HTML on the server if that is needed.