CStarRating

protected function getClientOptions()
{
    $options=array();
    if($this->resetText!==null)
        $options['cancel']=$this->resetText;
    if($this->resetValue!==null)
        $options['cancelValue']=$this->resetValue;
    if($this->allowEmpty===false)
        $options['required']=true;
    if($this->starWidth!==null)
        $options['starWidth']=$this->starWidth;
    if($this->readOnly===true)
        $options['readOnly']=true;
    foreach(array('focus', 'blur', 'callback') as $event)
    {
        if($this->$event!==null)
        {
            if($this->$event instanceof CJavaScriptExpression)
                $options[$event]=$this->$event;
            else
                $options[$event]=new CJavaScriptExpression($this->$event);
        }
    }
    return $options;
}

public function registerClientScript($id)
{
    $jsOptions=$this->getClientOptions();
    $jsOptions=empty($jsOptions) ? '' : CJavaScript::encode($jsOptions);
    $js="jQuery('#{$id} > input').rating({$jsOptions});";
    $cs=Yii::app()->getClientScript();
    $cs->registerCoreScript('rating');
    $cs->registerScript('Yii.CStarRating#'.$id,$js);

    if($this->cssFile!==false)
        self::registerCssFile($this->cssFile);
}

public static function registerCssFile($url=null)
{
    $cs=Yii::app()->getClientScript();
    if($url===null)
        $url=$cs->getCoreScriptUrl().'/rating/jquery.rating.css';
    $cs->registerCssFile($url);
}

protected function renderStars($id,$name)
{
    $inputCount=(int)(($this->maxRating-$this->minRating)/$this->ratingStepSize+1);
    $starSplit=(int)($inputCount/$this->starCount);
    if($this->hasModel())
    {
        $attr=$this->attribute;
        CHtml::resolveName($this->model,$attr);
        $selection=$this->model->$attr;
    }
    else
        $selection=$this->value;
    $options=$starSplit>1 ? array('class'=>"{split:{$starSplit}}") : array();
    for($value=$this->minRating, $i=0;$i<$inputCount; ++$i, $value+=$this->ratingStepSize)
    {
        $options['id']=$id.'_'.$i;
        $options['value']=$value;
        if(isset($this->titles[$value]))
            $options['title']=$this->titles[$value];
        else
            unset($options['title']);
        echo CHtml::radioButton($name,!strcmp($value,$selection),$options) . "\n";
    }
}

public function run()
{
    list($name,$id)=$this->resolveNameID();
    if(isset($this->htmlOptions['id']))
        $id=$this->htmlOptions['id'];
    else
        $this->htmlOptions['id']=$id;
    if(isset($this->htmlOptions['name']))
        $name=$this->htmlOptions['name'];

    $this->registerClientScript($id);

    echo CHtml::openTag('span',$this->htmlOptions)."\n";
    $this->renderStars($id,$name);
    echo "</span>";
}