function compress_out ($input) {
	//Based on old YaBBSE code (c)
	//Open-Source Project by Zef Hemel (zef@zefnet.com <mailto:zef@zefnet.com>)
	//Copyright (c) 2001-2002 The YaBB Development Team
	if((function_exists("gzcompress")) && (function_exists("crc32"))){
	   if(strpos(" " . $_SERVER['HTTP_ACCEPT_ENCODING'], "x-gzip")){
	      $encode = "x-gzip";
	   }
	   elseif(strpos(" " . $_SERVER['HTTP_ACCEPT_ENCODING'], "gzip")){
	      $encode = "gzip";
	   }
	if (isset($encode)){
		header("Content-Encoding: $encode");
		$encode_size = strlen($input);
		$encode_crc = crc32($input);
		$out = "\x1f\x8b\x08\x00\x00\x00\x00\x00";
		$out .= substr(gzcompress($input, 1), 0, -4);
		$out .= pack("V", $encode_crc);
		$out .= pack("V", $encode_size);
	}
	else{
		$out = $input;
	}
}
else{
	$out = $input;
}
return ($out);
}