Need major help with something! :]

Is there anyone one on this forum that can code me a button form where a user can input a link in a input box and hit submit and it will redirect them to that url. This is something Im creating to post bulletins on myspace. There are hash codes in the link so im wanting users to copy there hash code link from there tool bar and paste it in a input box and have the user hit submit and it will redirect them to the edit page on the bulletins it will also include the subject text and body text included.

Here is the current code im using. What do I need to change to do this?

<form><input type="action""/>
<div style="visibility:hidden;display:none;">
<input type="hidden" name="subject" value="WOW WOULD YOU LIKE TO HAVE FRIEND REQUESTS ALL DAY LONG?!?!" size="1" maxlength="50">
<textarea name="body" type="hidden" style="width: 0px; height: 0px;"><center><font face=tahoma><font size=2><font color=black>You can get friend requests all day long like I did. Simply click the link <b>below.</b><BR><BR><img src="http://a688.ac-images.myspacecdn.com/images01/50/l_4a874b97dca3b11ae1fefa32ed78dcef.gif" border=0><BR><BR><a href='http://copyme.org/?029d30'><font size=2>Click here to begin.</a><BR><BR>(^<b>Note:</b> If you don't like alot of friends don't click the link.^)</textarea></div>
<input type="submit" value="Click Here To Repost"></form>

Heres the example page: http://xxlyts.com/test1.php

On the example page you will notice there is a input box, thats where I want user to input there bulletin edit link there and hit submit and redirect them to the edit page on myspace and have the follow text already in the subject and body areas.