function changeMake(list)
{
  /*if(list.form.vehicle_year)
    list.form.vehicle_year.selectedIndex = 0;

  if(list.form.vehicle_id)
    list.form.vehicle_id.selectedIndex = 0;

  list.form.submit(); */
  
  if(list!='-1')
  {
	  var make_text = document.vehicleForm.make_id.options[document.vehicleForm.make_id.selectedIndex].text;
	   var form_action = document.vehicleForm.action;
	   form_action = form_action+filter_string_for_url(make_text)+'/'+list+'#formtop';
	   window.location = form_action;
  }
}

function changeVehicleYear(list)
{
  /*if(list.form.vehicle_id)
    list.form.vehicle_id.selectedIndex = 0;

  //list.form.submit();*/
  if(document.vehicleForm.make_id.value!="-1")
  {
	  if(list!='-1')
	  {
		  var make_text = document.vehicleForm.make_id.options[document.vehicleForm.make_id.selectedIndex].text;
		  var form_action = document.vehicleForm.action;
		  form_action = form_action + filter_string_for_url(make_text) + '/';
		   form_action = form_action+list + '/';
		   form_action = form_action + document.vehicleForm.make_id.value+'#formtop';
		   window.location = form_action;
	  }
  }
  else
  {
	  alert('Please select Make');
	  return;
  }
}

function changeVehicle(list)
{
  /*if(list.form.vehicle_id)
    list.form.vehicle_id.selectedIndex = 0;

  //list.form.submit();*/
  if(document.vehicleForm.make_id.value!="-1" && document.vehicleForm.vehicle_year.value!="-1")
  {
	  if(list!='-1')
	  {
		  var make_text = document.vehicleForm.make_id.options[document.vehicleForm.make_id.selectedIndex].text;
		  var vehicle_text = document.vehicleForm.vehicle_id.options[document.vehicleForm.vehicle_id.selectedIndex].text;
		  
		  
		  var form_action = document.vehicleForm.action;
		  form_action = form_action + filter_string_for_url(make_text) + '/';
		  form_action = form_action + document.vehicleForm.vehicle_year.value + '/';
		  form_action = form_action + filter_string_for_url(vehicle_text) + '/';
		  form_action = form_action + document.vehicleForm.make_id.value + '/';
		  
		   form_action = form_action+list+'#formtop';
		   window.location = form_action;
	  }
  }
  else
  {
	  alert('Please select Make and Year');
	  return;
  }
}