function GetIP(){   
             if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))   
                   $ip = getenv("HTTP_CLIENT_IP");    
             else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))   
                   $ip = getenv("HTTP_X_FORWARDED_FOR"); getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))   
                   $ip = getenv("REMOTE_ADDR");   
             else if (isset($_SERVER[@#REMOTE_ADDR@#]) && $_SERVER[@#REMOTE_ADDR@#] && strcasecmp($_SERVER[@#REMOTE_ADDR@#], "unknown")) $ip = $_SERVER[@#REMOTE_ADDR@#];   
             else   
                  $ip = "unknown";   
 
             return($ip);   
}