Width/height resizer

<?php
$args = array(
    'posts_per_page' => 4,
    'orderby'  => 'rand',
    'category__not_in' => 439
);
query_posts($args);
while (have_posts()) : the_post(); $do_not_duplicate = $post->ID;
$output = preg_match_all('/<img[^>]+src=[\'"]([^\'"]+)[\'"][^>]*>/i', get_the_content(), $matches);
$imageurl = $matches[1][0];
$percenta = 100;
$upravenawidth = 110;
$upravenaheight = 110;
list($width, $height) = getimagesize($imageurl);
if($height > $upravenaheight && $width <= $upravenawidth)
{
while($height > $upravenaheight ){
$percenta = $percenta - 1;
$height = $height / 100 * $percenta;
$width = $width / 100 * $percenta;
}
}

if($width > $upravenawidth && $height <= $upravenaheight)
{
while($width > $upravenawidth ){
$percenta = $percenta - 1;
$width = $width / 100 * $percenta;
$height = $height / 100 * $percenta;
}
}

if($width > $upravenawidth && $height > $upravenaheight)
{
while($width > $upravenawidth ){
$percenta = $percenta - 1;
$width = $width / 100 * $percenta;
$height = $height / 100 * $percenta;
}
while($height > $upravenaheight ){
$percenta = $percenta - 1;
$width = $width / 100 * $percenta;
$height = $height / 100 * $percenta;
}
}
?>
<div class="bf-border">
<div class="rssitem"><div class="pinkhover">
<a class="clickable" href="<? the_permalink(); ?>" rel="bookmark" title="" target="_top"><? the_title(); ?></a><br /><br /><br /></div>

<div class="rssanotacia"><a href="<? the_permalink(); ?>" rel="bookmark" title="" target="_top"><img src="<?php echo $imageurl; ?>" width="<?php echo $width; ?>" height="<?php echo $height; ?>" style="margin-top:<?php echo((110 - $height) / 2); ?>px" /></a></div>

</div>
</div>
<br />
<?php endwhile; ?>