" begw -- place cursor at beggining of current word
"
" $Id: begw,v 1.1 1997/05/29 20:52:49 cdua Exp cdua $
" Carlos Duarte, 970221
"
"	usase: _BW
"
"	_BW	place cursor at beg of current word, no matter
"		where it is placed at moment of macro call
"		i.e. anywhere over that word
"
map _BW a_mybmu`yx`u