<?php
function my_attachment_image($postid=0, $size='thumbnail', $attributes='') {
    $postid = (isset($postid)) ? $postid : get_the_ID();
    $images = get_children(
        array(
            'post_parent' => $postid,
            'post_type' => 'attachment',
            'numberposts' => 1,
            'post_mime_type' => 'image'
        )
    );

    if (is_array($images)) {
        foreach ($images as $image) {
            $attachment = wp_get_attachment_image_src($image->ID, $size);

            echo "<img src=\"{$attachment[0]}\" {$attributes} />";
            break;
        }
    }
}



if ( function_exists('register_sidebar') )
	register_sidebar(array(
        'before_widget' => '<li id="%1$s" class="widget %2$s">',
        'after_widget' => '</li>',
        'before_title' => '<h2>',
        'after_title' => '</h2>',
    ));

?>