Send a photo, with preview - URGENT

[eluser]Boris Strahija[/eluser]
I'm having some troubles with a app that send photos via email.
I have a form (name, email, file upload) when clicking on the send button everything works fine.
But I also have a preview link. This link should submit the form into a new window.
Does anyone have an idea how to do this, most of the browsers work flawless, but IE6 wont work at all.
I'm trying to change the target and action attributes via javascript.
Is there a better way to do this?