[ale] X window to foreground

[yahoo at jimpop.com (Jim Popovitch)]

One thing that bugs the fsck out of me is that Evolution can be launched
multiple times from a menu or panel icon.   This may seem trivial to
some ;-) but I wind up launching a second instance of Evo more times
than I care to. :-)   To that end....

I am looking for a cheap way to take the pid of a running process and
bring it to the foreground of the current display window.  Ideas?

Tia,

-Jim P.