This excerpt taken from the XIDE DEF 14A filed Jul 16, 2007.
How can I vote my shares without attending the annual meeting?
Whether you hold shares directly as the shareholder of record or beneficially in street name, you may direct how your shares are voted without attending the annual meeting. If you are a shareholder of record (that is, if your shares are registered directly in your name with our transfer agent), you must complete and properly sign and date the accompanying proxy card and return it to us and it will be voted as you direct. A pre-addressed envelope is included for your use. If you are a shareholder of record and attend the meeting, you may deliver your completed proxy card in person. If you hold shares beneficially in street name, you may vote by submitting voting instructions to your broker, bank or other nominee.