Help Me

Hi to all,

I can’t get the value of “get_post_meta($post->ID, “img”, true)” in my funtion, can someone help me.

heres the code

<?php
	//	Section
	function sections($cat,$cattitle){
		$cat = $cat;
		$cattitle = $cattitle;

?>

<div class="ja-box column ja-zintheme">
	<?php
			$recent = new WP_Query("cat=$cat&showposts=1"); while($recent->have_posts()) : $recent->the_post();
            $post_img = '<img src="https://localhost/fil/wp-content/themes/t-moz/timthumb.php?src='.get_post_meta($post->ID, "img", true).'&h=25&w=25&zc=1&q=100"/>';
    ?>
<div class="inner clearfix">
    <div class="ja-zincat clearfix">
        <h3>
        <a title="" href="#">
        	<span><?php echo $cattitle ?></span>
        </a>
        </h3>
    </div>
    <div class="ja-zincontent clearfix">
        <div style="width: 160px; height: 80px;" class="ja-zinimg">
        <?php echo $post_img; ?>
	 </div>
    <h4 class="ja-zintitle">
		<a title="<?php the_title(); ?>" href="<?php the_permalink() ?>"><?php the_title(); ?></a>
    </h4>
        <p>
        <?php excerp(80,1); ?>
        </p>
    </div>
</div>
<?php endwhile; ?>
</div>
<?php
	}
?>