public function actionIncart(){

        $product = Catalog::model()->findByPk($_POST['id']);
        $sizes = explode(',', $product->size);
        $count = explode(',', $product->count);
        $size_count = 0;

        if(isset($_POST['size'])){
            foreach($sizes as $key=>$size){
                if($_POST['size'] == $size){
                    $size_count = $count[$key];
                }
            }
            $product->chosenSize = $_POST['size'];
            $position = Yii::app()->shoppingCart->itemAt($_POST['id'].'_'.$_POST['size']);
            if($position){
                $count_cart = $position->getQuantity()+1;
                if($count_cart <= $size_count){
                    Yii::app()->shoppingCart->put($product);
                    echo Yii::app()->shoppingCart->getItemsCount();
                } else {
                    echo false;
                }
            } else {
                Yii::app()->shoppingCart->put($product);
                echo Yii::app()->shoppingCart->getItemsCount();
            }
        }
    }