How can I use submit to pass the value in HTML (form1) to the serch. ASPX page and get the value in serch. aspx? (Collection)

How can I use submit to pass the value in HTML (form1) to the serch. ASPX page and get the value in serch. aspx?
<Form method = "Post" Action = "search. aspx">
<Input type = "text" name = "keyword" size = "30">
& Nbsp;
<Select name = "A1" id = "A2">
<Option value = "" selected> select category </option>
<Option value = 0532114143485813> A </option>
<Option value = 0532114125598867> B </option>
<Option value = 0531615060184586> C </option>
<Option value = 0531615052523247> d </option>
</SELECT>
<Input type = "Submit" name = "Submit" value = "Search">
</Form>

Answer:
Request. Form ["A1"];
Request. Form ["keyword"];