//
// Turns an URL from the [img] tag into an <img> tag or a <a href...> tag
//
function handle_img_tag($url, $is_signature = false)
{
	global $lang_common, $pun_config, $pun_user;

	$img_tag = '<a href="'.$url.'">&lt;'.$lang_common['Image link'].'&gt;</a>';

	if ($is_signature && $pun_user['show_img_sig'] != '0')
		$img_tag = '<img class="sigimage" src="'.$url.'" alt="'.htmlspecialchars($url).'" />';
	else if (!$is_signature && $pun_user['show_img'] != '0')
	{
		
$ch = curl_init();
$timeout = 5; // set to zero for no timeout
curl_setopt ($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$file_contents = curl_exec($ch);
curl_close($ch);

$new_image = ImageCreateFromString($file_contents);
imagejpeg($new_image, "temp.jpg",100);

// Get new dimensions
$myfilesize = getimagesize("temp.jpg");
$width_orig = $myfilesize[0];
$height_orig = $myfilesize[1];

		if ($myfilesize)
		{
			$width = $myfilesize[0];
			$height = $myfilesize[1];
			$img_tag = '<img class="postimg" src="'.$url.'" alt="'.htmlspecialchars($url).'" />';
			if ($width > 550)
			{
				$img_tag = '<a href="'.$url.'" rel="lightbox">' . $img_tag . '</a>';
			}
		}
		else
		{
			$img_tag = '<strong>error: image ' . $url . ' cannot be loaded.</strong>';
		}
	}