function form($instance)
    {
        parent::form($instance);
        $instance = wp_parse_args((array) $instance, $this->get_default());
        extract($instance);
        ?>
        <p>
            <label for="<?php 
        echo esc_attr($this->get_field_id('cols_per_row'));
        ?>
"><?php 
        _e('Cols per row:', 'origamiez');
        ?>
</label>
            <select class="widefat" id="<?php 
        echo esc_attr($this->get_field_id('cols_per_row'));
        ?>
" name="<?php 
        echo esc_attr($this->get_field_name('cols_per_row'));
        ?>
">                
                <?php 
        $cols = array(3, 4, 6);
        foreach ($cols as $col) {
            ?>
                    <option value="<?php 
            echo esc_attr($col);
            ?>
" <?php 
            selected($instance['cols_per_row'], $col);
            ?>
><?php 
            echo esc_attr($col);
            ?>
</option>
                    <?php 
        }
        ?>
            </select>
        </p>
        <p>
            <label for="<?php 
        echo esc_attr($this->get_field_id('excerpt_words_limit'));
        ?>
"><?php 
        _e('Excerpt words limit:', 'origamiez');
        ?>
</label>            
            <input class="widefat" id="<?php 
        echo esc_attr($this->get_field_id('excerpt_words_limit'));
        ?>
" name="<?php 
        echo esc_attr($this->get_field_name('excerpt_words_limit'));
        ?>
" type="text" value="<?php 
        echo esc_attr(strip_tags($instance['excerpt_words_limit']));
        ?>
" />            
        </p>
        <p>            
            <input class="widefat" id="<?php 
        echo esc_attr($this->get_field_id('is_show_date'));
        ?>
" name="<?php 
        echo esc_attr($this->get_field_name('is_show_date'));
        ?>
" type="checkbox" value="1" <?php 
        checked(1, (int) $is_show_date, true);
        ?>
 />            
            <label for="<?php 
        echo esc_attr($this->get_field_id('is_show_date'));
        ?>
"><?php 
        _e('Is show date:', 'origamiez');
        ?>
</label>            
        </p>
        <p>
            <input class="widefat" id="<?php 
        echo esc_attr($this->get_field_id('is_show_comments'));
        ?>
" name="<?php 
        echo esc_attr($this->get_field_name('is_show_comments'));
        ?>
" type="checkbox" value="1" <?php 
        checked(1, (int) $is_show_comments, true);
        ?>
 />            
            <label for="<?php 
        echo esc_attr($this->get_field_id('is_show_comments'));
        ?>
"><?php 
        _e('Is show comments:', 'origamiez');
        ?>
</label>                        
        </p>
        <?php 
    }