I've encountered the following instructions on a forum about battery drain
Set WiFiWi-Fi sleep to Never in the
Settings > Wireless & Networks > WiFiWi-Fi Settings > Advanced >WiFi>Wi-Fi Sleep Policy
menu.
However, my Droid X (Stock rooted Froyo 2.2) doesn't have "Advanced" option in "WiFi"Wi-Fi Settings" menu!
How do I set WiFiWi-Fi Sleep Policy?