I ended up using jui’s EDatePicker. I copied the extension to my protected/extension folder, and it works like a charm. Here is my code:
<?php $this->widget('application.extensions.jui.EDatePicker',
array(
'name'=>'expire_time',
'attribute'=>'del_timestamp', // Model attribute filed which hold user input
'model'=>$model, // Model name
'language'=>'en',
'mode'=>'imagebutton',
'theme'=>'cupertino',
'value'=>date('d-m-Y'),
'htmlOptions'=>array('size'=>10),
'fontSize'=>'0.8em'
)
);?>