The problem I have is that I have some existing form code that is redirecting to a page and I need to create a pop up instead of a redirect. I am use to using an onClick popup on an a href tag but not sure how with form elements. My goal is to direct to a pop up after the user submits.

Here is my existing code:

<form class="lpeRegForm formNotEmpty" method="post" enctype="application/x-www-form-urlencoded"
action="" id="mktForm_1003" name="mktForm_1003">
<input type="email" name="Email" id="Email" placeholder="enter email address" maxlenght="255" style="width:260px;" class="input white-btn">
<input type="submit" name="submit" value="Submit" onclick='Mkto.formSubmit(document.getElementById("mktForm_1003")); return false;' class="btn light-gray-btn right">

<input type="hidden" name="lpId" value="1025" />
<input type="hidden" name="subId" value="45" />
<input type="hidden" name="kw" value="" />
<input type="hidden" name="cr" value="" />
<input type="hidden" name="searchstr" value="" />

<input type="hidden" name="formid" value="1003" />
<input type="hidden" name="returnURL" value="" />
<input type="hidden" name="retURL" value="" />

<input type="hidden" name="_mkt_disp" value="return" />
<input type="hidden" name="_mkt_trk" value="id:485-EJB-147&" />