How i do I remove JavaScript code from Google feed form

I have line of code for my email feed subscription But my we web page do not support JavaScript

<form style="border:1px solid #ccc;padding:3px;text-align:center;" action="https://feedburner.google.com/fb/a/mailverify" method="post" target="popupwindow" onsubmit="window.open('https://feedburner.google.com/fb/a/mailverify?uri=Solinkng', 'popupwindow', 'scrollbars=yes,width=550,height=520');return true"><p>Enter your email address:</p><p><input type="text" style="width:140px" name="email"/></p><input type="hidden" value="Solinkng" name="uri"/><input type="hidden" name="loc" value="en_US"/><input type="submit" value="Subscribe" /><p>Delivered by <a href="https://feedburner.google.com" target="_blank">FeedBurner</a></p></form> 

My problem is there a way which the JavaScript line can be changed to PHP form ?

Big thank for your time glad to see solution