Move EChosen folder in your applications extensions folder (default:
Just place the following code inside your view file:
$this->widget( 'ext.EChosen.EChosen' );
You can also change some default settings:
$this->widget( 'ext.EChosen.EChosen', array( 'target' => 'select', 'useJQuery' => false, 'debug' => true, ));
You will also need to add
chzn-select class to your select elements you want to apply this plugin or if you use jQuery framework you can just change the selector.