#file=cross_post_list_ftyp
#on entry: $menu_opt=...List=xxx&...Ftypo=yyy&...Fcomo=zzz&... (POST method)
#on exit: defines $list=xxx if List is defined
#                 $list="" otherwise
#                 $ftypo=yyy if Ftypo is defined
#                 $ftypo="" otherwise
#                 $fcomo=zzz if Fcomo is defined
#                 $fcomo="" otherwise
ifs=$IFS;IFS="&";list=;ftypo=;for s in $menu_opt;do
l=`expr "$s" : 'Style=\(.*\)'`;[ "$l" ]&&style="$l"
l=`expr "$s" : 'List=\(.*\)'`;[ "$l" ]&&list="$l"
l=`expr "$s" : 'Ftypo=\(.*\)'`;[ "$l" ]&&ftypo="$l"
l=`expr "$s" : 'Fcomo=\(.*\)'`;[ "$l" ]&&fcomo="$l"
done;IFS=$ifs