wordpress loop multiple category - wordpress-theming

Question

What I am trying to achieve
<div>
posts from category "vitejte"
</div>
<div>
posts from category "novinky"
</div>
This is my index.php code
<?php get_header(); ?>
<div class="body_resize">
<div class="body">
<div class="body_small2">
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php if ( in_category('vitejte') ) { ?>
<h2><?php the_title(); ?></h2>
<img src="wp-content/themes/trywp/images/img_1.jpg" alt="picture" width="353" height="102" />
<?php the_content('Read More...'); ?>
<div class="clr"></div>
<?php } else { ?>
<?php _e('Prosím vytvořte článek v kategorii "vitejte"'); ?>
<?php } ?>
<div class="line"></div>
</div>
<?php endwhile; else: ?>
<?php _e('Prosím vytvořte článek v kategorii "vitejte2"'); ?>
<?php endif; ?>
<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<div class="body_small">
<h2>Novinky</h2>
<?php if ( in_category('novinky') ) { ?>
<p class="data"> 20 / May / 09</p>
<div class="clr"></div>
<p><?php the_content('Read More...'); ?> >></p>
<div class="clr"></div>
<?php } else { ?>
<?php _e('Prosím vytvořte článek v kategorii "novinky"'); ?>
<?php } ?>
<div class="line"></div>
</div>
<?php endwhile; else: ?>
<?php _e('Prosím vytvořte článek v kategorii "vitejte2"'); ?>
<?php endif; ?>
<?php get_footer(); ?>
The problem is that it returns the posts as requested but it returns also
Prosím vytvořte článek v kategorii "vitejte"
and
Prosím vytvořte článek v kategorii "novinky"
which are in the else statement and should not be returned
BTW: the text means smt like "please create a post in "vitejte" category
thanks for help

Answer 1

Once you've been though the loop once, have_posts() will be false - you're seeing the content of the else after the endwhile. Try calling rewind_posts() before the second loop (ie before the second <?php if (have_posts()) : while (have_posts()) : the_post(); ?>). That should allow you to loop through the posts again.