jQuery disable button (NOT Submit) until field validates + Validation Plugin
<p>I have 4 buttons on my form, a Submit, Cancel, Add and Remove button. All are working as expected but I would like to disable the Add button until the input field validates. I'm using the Validation plug-in and I think this can be done with a required validation with a callback but I'm not sure.</p>

<p>Could someone point me in the right direction?</p>

<p>UPDATE:</p>

<p>Here is an idea of some code </p>

<pre><code>required: function(element) { 
   return($('#chargeamtaddButton').attr('disabled', ? '','disabled');
}
</code></pre>

<p>Looking for that true/false option flag to set the disabled attribute</p>
