What I would do is use AJAX to throw some sort of "waiting..." modal over the page for 2-3 seconds and resize/move the iframe to get the second page content positioned correctly after the user submits his e-mail. Here's one way to do that, courtesy of another BHW member I can't recall right now:
Code:
function checkHistory() {
var hist=history.length;
if (hist>1)//just change value 1 to other if you need :)
****{
********//redirect or resize or whatever... :P
****}
}
then add this to the iframe:
onload="checkHistory()"
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