Skylight flashing

The flashing at the back of skylight should be a solid piece that extends out on both sides, correct? Anyone that has any pics/links of a properly flashed skylight would be appreciated.

BTW - House is 18 years old with no signs of leaking evident.

Thanks in advance.

This may help you a bit here:
http://www.roofkey.com/skylight-flashing.html:)

You the man! Thank you!