Yii 1.1: Add jQuery UI datepicker to multiple input date fields.

In the following way, you can add jQuery UI datepicker to your Yii site.

$this->widget('zii.widgets.jui.CJuiDatePicker',array(
    'name'=>'publishDate',
    // additional javascript options for the date picker plugin
    'options'=>array(
        'showAnim'=>'fold',
    ),
    'htmlOptions'=>array(
        'style'=>'height:20px;'
    ),
));
You can even add date picker to more than one elements.
For example, you have two date fields with ids:
joining_date and increment_date
Then you can add these two dates in array like:
$dateFields = array('joining_date', 'increment_date');
if (! empty($dateFields)) {
// See here, you can add run time fields.
$dateFieldIds = implode(',#', $dateFields);
$this->widget('zii.widgets.jui.CJuiDatePicker',array(
  'name' => $dateFieldIds, 
  'options'=>array('showAnim'=>'fold',),
  'htmlOptions'=>array('style'=>'height:20px; display:none;'),
 ));
}

Reference:

http://www.yiiframework.com/doc/api/1.1/CJuiDatePicker