Copy input field from one to another in a different page

I am trying to copy one input field to another in a different page. The scenario is when the the user press the button to submit the input field from one form goes to another form.

I would like to accomplish something like this: http://jsfiddle.net/bxHQ5/

This what I have done. It copies the input field to another.

 <input type="text"id="EmailAddress" name="EmailAddress" value="" >
 <input type="text" id="Username" name="Username" value="">

$("#EmailAddress").keyup(function(){
    $("#Username").val(this.value);
});

Here is another solution that I have found, but this one clones the input and adds a new one.

 <input type="text" onchange="document.body.appendChild(this.cloneNode(true))" />

UPDATE – I got it working – I am posting the solution for anyone who needs it

1st Form :

<form action="/register-form/" method="get"><input style="float: right;" name="search" type="submit" value="FREE TRIAL" />

2nd form :

<form id="registration_form" class="form-horizontal" 
action="PHP_CRM_URL_HERE" method="get" name="registration_form">
<div class="form-group">
<div class="col-sm-6">
<input id="yourEmail" class="form-control input-group-lg reg_name" 
style="height: 50px;" title="yourEmail" name="yourEmail" type="yourEmail"
value="[insert_php] echo $emailValue; [/insert_php]" placeholder="Email 
Address" />
</div>
<div class="col-sm-6">
<input id="yourPhone" class="form-control input-group-lg reg_name"
style="height: 50px;" title="yourPhone" name="yourPhone" type="yourPhone"
placeholder="Mobile Number" />
</div>
</div>
<!--/form-group-->
<div class="form-group">
<div class="col-sm-12">
<input id="yourPassword" class="form-control input-group-lg reg_name" 
style="height: 50px;" title="yourPassword" name="yourPassword"
type="yourPassword" placeholder="Password" />
</div>
</div>
<!--/form-group-->
<p style="text-align: center;"><button class="contact-submit"
style="background: #ca0002 none repeat scroll 0px 0px; border-radius: 2px; 
color: #ffffff; width: 12%; height: 45px;" 
type="submitContactForm">Register</button></p>
</form>

PHP Code to parse the input field from the 1st form

<?php
$emailValue = $_REQUEST['term'] ? $_REQUEST['term'] : null;
?>