query_posts not working

It seems like “query_posts” doesn’t work.
i set new category name and number of posts to display, but it shows the same category and number of posts in the wp admin options
:S

<?php $temp_query = $wp_query; ?>
        <?php query_posts('category_name=' . get_option('gallery-category') . '&showposts=' . get_option('gallery-items')); ?>
        <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
        <div class="imageElement">
            <h2><?php the_title() ?></h2>
            <p><?php the_content_rss('', TRUE, '', 30); ?></p>
            <a href="<?php the_permalink() ?>" title="Read More" class="open"></a>
            <img src="<?php $key="articleimg"; echo get_post_meta($post->ID, $key, true); ?>" class="full" />
            <img src="<?php $key="articleimg"; echo get_post_meta($post->ID, $key, true); ?>" class="thumbnail" />
        </div>
        <?php endwhile; else: ?>
        <?php endif; ?>
        <?php $wp_query = $temp_query; ?>