<
form
method
=
"post"
action
=
"???"
>
<
select
name
=
''
my_size
" id='size' class='postform' onchange="
submit
(
)
;
">
<
option
selected
=
"selected"
>
Choose a size
<
/
option
>
<
option
value
=
"10"
>
10
<
/
option
>
<
option
value
=
"20"
>
20
<
/
option
>
<
/
select
>
<
/
form
>