Javascript Rookie Needs A Close-window Button

What I want to do is create a button, that when pressed, closes the window
it is in, and launches a URL. The window the button is in is actually just
a sub-page of the main website page, launched with target="blank", but I
just do not want to close the window as I said, I want to launch a website
address from it & have the launched from window close.

So please, walk me through this. Where do I place the:

<SCRIPT language="JavaScript"> ?

(Oh - this is thr right way, correct - case sensitive, right?)

Then what? I can create a button with the tutorials, but if you know, just
write the darned thing for me please - I learned HTML mostly from
copy/pasting.

AND... OK, now more complicated maybe (???). Actually this is more
important than the above. This is from an application sub-page, the page
opening with target="_blank". So the below is HTML that creates buttons.
If the applicant presses the "submit application" button, at least when I
press it, it launches O.E. and asks me if I want to send the filled-in text
through O.E. to the email recipient. You know what I mean, right ? Well,
I want the window the "submit application" button is in to do it's thing all
right - submitting through the email, but I also want the page or window
(I.E. or other?) launched from to close also.

the HTML code that shows two buttons:

<input type="submit" value="submit application">
<input type="reset" value="start over"/><br>

Thanks for your input. Assume I know nothing about javascript, but can get
around in HTML.