Parse error after editin theme editor

After seeking a solution about thumbnail size, I found in wordpress codex some codes and when i add them in editor in function php my blog stopped working. It is a blank page with this error message :

Parse error: syntax error, unexpected end of file in /home/taskylon/public_html/wp-content/themes/easel/functions.php on line 487

I opened my cplesk profile but I cant see the specific line. I assume the problem is here:

if (!function_exists(‘easel_display_post_thumbnail’)) {
function easel_display_post_thumbnail($size = ‘thumbnail’) {
global $post, $wp_query;
if ($post->post_type == ‘post’) {
$post_thumbnail = ”;
$link = get_post_meta( $post->ID, ‘link’, true );
if (empty($link)) $link = get_permalink();
if ( has_post_thumbnail() ) {
if (is_home()) {
$post_thumbnail = ‘<div class=”post-image”><center>‘.get_the_post_thumbnail($post->ID, $size).’</center></div>’.”\r\n”;
} else
$post_thumbnail = ‘<div class=”post-image”><center>’.get_the_post_thumbnail($post->ID, $size).'</center></div>’.”\r\n”;
} else {
$url_image = get_post_meta($post->ID, ‘featured-image’, true);
if (!empty($url_image)) $post_thumbnail = ‘<div class=”post-image”><center><img src=”‘.$url_image.'” title=”‘.get_the_title().'” alt=”‘.get_the_title().'”></center></div>’.”\r\n”;
}
echo apply_filters(‘easel_display_post_thumbnail’, $post_thumbnail);
}
}
}

Could you please tell me where exactly is the problem and how to fix it?
Thank you

My blog is http://www.taskylonea.com