How to have Dojo support disabled by default and just enable it if you want to use it ?

I have the problem that dojo support is automaticly loaded when using any form. Even without any dojo elements.

I have following configuration:

Bootstrap file

    if($this->dojo()->isEnabled()){

$this->dojo()->setLocalPath($this->baseUrl().'/js/dojo/dojo/dojo.js') ->addStyleSheetModule('dijit.themes.tundra') ->setDjConfigOption('usePlainJson',true); echo $this->dojo();}

I thought to enable dojo I had to use explicit use something like this in my template/view file:

 $this->dojo()->enable();

How the tell Zend Framework not to use Dojo by default for Forms ?