I have a form with action e.g. \[code\]register.php\[/code\]I also have a Google group API link - https://groups.google.com/group/GROUPNAME/boxsubscribe?p=ConfirmExplanation&email=EMAIL_ID&_referer&hl=enHow can I trigger this link from the form \[code\]<form action="register.php">\[/code\]