[Typo3] Mailform element

[horde at chosenofgod.com]

I am quite new to Typo3, and programming, so forgive me for this very basic
question. I have a mailform on my website, but when I click on the submit
button, rather than jumping directly to the "Jump Page" (set in the "Jump to
Page" configuration box), it opens a new window with the Jump Page, leaving the
completed mail form open in the window under the new window that has popped up.
The form is e-mailed to the appropriate address, and the new window that pops
up is the correct jump page, but I want it to open in the same window that the
mail form is in, rather than jumping to a new window. If anyone could walk me
through what I need to do to change this behavior, I would greatly appreciate
it! The form can be found at http://chosenofgod.com/index.php?id=40

-Alan Ruiter