Ajax Request resulting in exponential requests.

So, I've got the following bit of code:

<?php $this->start('search'); ?>

<?php

$data = $this->Js->get('#ItemIndexForm')->serializeForm(array('isForm' => true, 'inline' => true));

$this->Js->get('#ItemIndexForm #ItemName')->event('keyup',$this->Js->request(array('action' => 'index'), array('update' => '#content', 'data' => $data, 'async' => true, 'method' => 'POST')));

$this->Js->get('#ItemIndexForm')->event('submit', $this->Js->request(array('action' => 'index'), array('update' => '#content','data' => $data,'async' => true, 'method' => 'POST')));

?>

<?php echo $this->Form->create('Item'); ?>

<?php echo $this->Form->input('Item.name'); ?>

<?php echo $this->Form->submit(); ?>

<?php echo $this->Form->end(); ?>

<?php $this->end(); ?>

I'm calling writeBuffer at the end of the view for ajax pagination. 

That creates a search form that creates a search block that is fetched into my layout, I did it this way so that when we update #content the search form doesn't get reloaded and lose focus.  (not sure if that was the best way to do it or not).

It works, however the first key press results in one request, the second in two, the third in four request, and so on.  Same for submitting with the submit button, each submission results in an exponential number of requests.

I'm pretty sure I know why it's doing it but not sure why it would actually work that way.  My theory is that when it receives the data back its binding again to the search form thats coming from the reply even though that part is getting stripped out.  It's getting stripped out because its not inside #content.  However that doesn't really seem to be the case.  

How can I resolve this issue?

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