function lbManufacturers_HideRest()
{
  //" Select a Manufacturer..."
  if (document.all.lbManufacturers.options[document.all.lbManufacturers.selectedIndex].value == 0)
		{
  		document.all.selDriveModels.style.visibility = "hidden";
 			document.all.spanDriveModels.style.visibility = "hidden";
  		document.all.selFirmwares.style.visibility = "hidden";
 			document.all.spanFirmwares.style.visibility = "hidden";
		};
};