loadVars.send() issues


I have made flash music player on http://trubeats.com - when the user has selected the songs to purchase and click’s buy now, the user is redirected to paypal via a loadVars.send(‘https://www.paypal.com/cgi-bin/webscr’, ‘_self’, ‘POST’) command.

When I embed the flash player on MySpace or Soundclick for example, the redirect is blocked, and the player doesn’t redirect.

Is there a way around this, or an alternative to the lv.send method?