How do you unbind only some events?
<p>I have a few things like this...</p>

<p><code>$('body').on('keyup', function(e){if(e.which === 32){//do stuff}})</code></p>

<p>I need to disable some of these events at times but not all of them. </p>

<p><code>$('body').off('keyup')</code> just turns them all off. </p>
