JMH save me!!!

I have this double depended dropdown and I want to add a third one

Code:
<%
Dim rsProduct, str_sql
str_sql = "SELECT company, productid, product, kostos, timi_polisis, typefn, typeid, producttype " & _
		"FROM companies, products, producttypes where companyid = companyfn and typeid = typefn order by company, product"
Set rsProduct = my_conn.Execute(str_sql)

%>

<script language="javascript">
var dataArray = new Array(null<%
   If Not rsProduct.EOF Then rsProduct.MoveFirst
   Dim last_item
   

   Do Until rsProduct.EOF
   
      If last_item <> rsProduct("company") Then
         If len(last_item) > 0 Then Response.Write ")"
         Response.Write ",new Array(null"
         last_item = rsProduct("company")
      End If
      Response.Write ",new Array('" & rsProduct("productid") & "','" & rsProduct("product") & "','" & rsProduct("kostos") &"','" & rsProduct("timi_polisis") &"','" & rsProduct("producttype") & "')"
	  rsProduct.MoveNext
   Loop
   If len(last_item) > 0 Then Response.Write ")"
   %>);
   
   



function changeOptions(elemOne,elemTwo){
   for(i = elemTwo.options.length; i >= 1; i--)
   elemTwo.options[i] = null;
   elemTwo.selectedIndex = 0;

   if(elemOne.selectedIndex == 0)
      return false;
	  

   for(i=1;i<dataArray.length;i++){
      elemTwo.options[i] = new Option(dataArray[elemOne.selectedIndex][i][1],dataArray[elemOne.selectedIndex][i][0]);
   }
}



<select name="selCompany" class="dropdown" onChange="changeOptions(this,document.getElementsByName('sel  Product')[0])">
    <option value="">[ Επιλέξτε εταιρία ]</option>
    <%
    If Not rsProduct.BOF Then rsProduct.MoveFirst
	Dim last_company
    Do Until rsProduct.EOF
		If rsProduct("company") <> last_company Then
	        Response.Write "<option>" & rsProduct("company") & "</option>"
			last_company = rsProduct("company")
		End If
        rsProduct.MoveNext
    Loop
    %>
</select>


<select class="dropdown" name="selProduct">
    <option value="">[ Επιλέξτε Προϊόν ]</option>
</select>
I have tried it but I can't..
Please! You'll be my hero!