ltempest

HELP! I'm trying to cobble together a free 'email this page' code into my Joomla Virtuemart page. I can get the icon displayed but cannot get is to process the popup window for the user to enter his email address. echo "<td><a href=\"javascript:popUp('$mosConfig_live_site/emailpage/friend.php?id=".$PHP_SELF."\"><img src=\"http://www.oec4x4.com/images/M_images/emailButton.png\" width=\"32\" height=\"32\" alt=\"\" align=\"middle\" name=\"PDF\" border=\"0\" /></a></td>"; I think the problem lies in the id=".$PHP_SELF."\" part. I need this to be a variable as this icon will appear on different pages so the page id will differ. Can anyone help? Thanks Lee