PL / SQL HtmlForm

HI.

i need a construct like
<select>
<option ...>
<option ...>
<option ...>
<option ...>
</select>

the option tags should be filled by a query like select name form Person;

how do i get it?
i must declare the variables which i know only AFETER the select statement

hto.formOpen

htp.formSelectOpen 
htp.SelectOption
htp.SelectOption
htp.SelectOption
htp.formSelectClose
htp.formClose