Dropdownlist

I had dependent dropdown lists in my 'edit' page. I want the all dropdown lists to show the values of the record chosen. Can someone tell me how to set it?Below is one of my dropdownlist.

<select name="CategorySelect" onChange="document.DemoForm.submit();">
<option value="NONE">-- Choose a business unit --
<% For cnum = 0 To UBound(catRows,2) %>
<option value="<%= catRows(0,cnum) %>|<%= catRows(1,cnum) %>"
<% If catRows(0,cnum) = Cint(catChosen) Then %>
selected
<% End If %>
><%= catRows(1,cnum) %>
<% Next %>
</select>