Submit button opens up a new javascript window?

I'm working on this page http://www.cyqo.com/mp3/2577/SickTransit/Godsend.htm (warning, music will be playing)

And when someone comments I want the button to open up a new window sized 400x200 with a confirmation that says "Comment submitted, refresh to see your comment".

Reason being that the person is probably listening to a 3 minute long music, and I want them to be able to leave a comment with no interruption of the playing song.

I am 99% sure this is done with Javascript but I am open to any options.

A demo account to the site is digitalpoint/digitalpoint so you can see what I am talking about.

Thanks in advance for the advice.

 

have you tried onclick="window.open(url)"

 

See this link http://www.javascript-coder.com/window-popup/javascript-window-open.phtml

 

Thanks guys, got it all taken care of now.

 

some javascripts for opening a new window with options - http://javascriptbank.com/javascript/find-k-b3Blbg==---t-title---l-en---page-2.html