Passing Variable To ASP With Javascript

I have two events in a form that I am passing. One is to a javascript
function, the other is to the same .asp page only with another action
to show different data.

Onchange is calls the function updateclasses, which in turn reloads
another drop-down list. It also reloads the .asp page, which
refreshes the data. My problem is that it refreshes the second
drop-down briefly, until the page reloads, but then resets the form.
How do i pass this data to the .asp?

I thought in the .asp, I could just do something simple like the
following, but wasn't sure of the correct syntax. is there a better
way?

view = request.querystring("view")
if view = "" then
view = "SciLink"
else
%>
<script language="JavaScript">
updateclasses(form1, 0, Student)
</script>
<%
end if

.........