The Struts form tags all accept an "accesskey" property,
which lets you set this value. So "accesskey='D'" will
cause IE to select the field or button when the alt-d
(or equivalent) key is pressed.

This is part of the official HTML specification, but is not
supported by all browsers. It is also problematic in a
internationalized application, since there isn't an
easy way to localized the accesskeys using the Struts
tags.

HTH - Ted