Using this syntax, we can get the link of the suitelet Page .
<a href=”https://7404422-sb1.extforms.netsuite.com/app/site/hosting/scriptlet.nl?script=369&deploy=1&compid=7404422_SB1&h=fbf2566a1a5b5374ec85&po_id={id}&approver_id=1330&type_status=approve” target=”_blank” onclick=”window.open(this.href,”windowName”)”, style=”color:blue; text-decoration:underline”>Approve</a>
This is the external URL link of the script .We get the External link from the script deployment page.