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"; }; };