Request.Querystring

I have something like this in my form:

<select onchange='document.getElementById("iframe1").src="cities.asp?country="+ this.value'">
<option value='' selected>-----Select-----
<option value='Overnight'>Overnight
<option value='Email Special'>Email Special
<option value='Fax,Email,Pickup'>Fax,Email,Pickup
</select>

this goes to cities.asp and the value of country is passed over to the cities.asp

Now what i want to do is ..I need to pass on one more value in addition with the value of variable coutry being passed.

i want to forward Request.form("CompanName") too to cities.asp.

is this the right way of modifying the statement orCAN i do it this way by any chance?

<select onchange='document.getElementById("iframe1").src="cities.asp?country="+ this.value'&Companyname='<%"&Request.form("companyname")&"'%>">

Please advise?