Hi

if there are 3 selections, named location,department,employee, the
relationshipe is, in a location there are departments, in a department
there are employees, so for a selected location, there should be a set
of associated departments each of which there should be a set of
employees.

I have an example, but only for 2 selections, like

<form name="location">
<select name="location_category"
  onChange="swap
  (window.document.the_form.locaiton_category.
  options[selectedIndex].text);">
<option selected>...<option>...
<option>...
</select>

<select name="department" multiple>
<option>...
<option>...
<option>...
</select>
</form>

function swap(array)
{
  var numbers_select = window.document.the_form;
  var the_array = eval(array);
  setOptionText(window.document.the_form.location, array);
}

Can any one provide me with workable example

--
Thanks lots
John
Toronto