gistfile1.php

 <?php
                $this->widget('zii.widgets.jui.CJuiDatePicker',
                    array(
                        // you must specify name or model/attribute
                        'model' => $model,
                        'attribute' => 'geb_dat',
                        //                'name'=>'Teilnehmer[birthday]',

                        // optional: what's the initial value/date?
                        'value' => '1960-01-01',

                        // optional: change the language
                        'language' => 'de',
                        'flat' => false,
                        //'themeUrl' => '/css' ,
                        //'theme'=>'ui', //try 'bee' also to see the changes
                        //'cssFile'=>array('/jquery-ui-1.8.16.custom.css'),
                        //  optional: jquery Datepicker options
                        'options' => array(
                            // how to change the input format? see http://docs.jquery.com/UI/Datepicker/formatDate
                            'dateFormat' => 'yy-mm-dd',

                            // user will be able to change month and year
                            'changeMonth' => 'true',
                            'changeYear' => 'true',
                            'yearRange' => '1920:1995',

                            // shows the button panel under the calendar (buttons like "today" and "done")
                            'showButtonPanel' => false,

                            // this is useful to allow only valid chars in the input field, according to dateFormat
                            'constrainInput' => 'false',

                            // speed at which the datepicker appears, time in ms or "slow", "normal" or "fast"
                            'duration' => 'fast',

                            // animation effect, see http://docs.jquery.com/UI/Effects
                            'showAnim' => 'slide',
                        ),
                    )
                );
                ?>