//_JavaScript_Document

function airnav(zap) {
	if (document.getElementById) {
		var nav = new Array("air_program","air_shed_description","air_pollution","air_quality_update","outdoor_burning_information","burn_ban_information","wood_smoke","indoor_air_quality","air_monitoring_station","air_quality_links","air_quality_glossary_of_terms","program_contacts");		
		for (x = 0; x < nav.length; x++) {
			var abra = document.getElementById(nav[x]).style;
			if (nav[x] == zap) {
					abra.display = "block";
			} else {
				abra.display = "none";
			}
		}
		return true;
	} else {
		return true;
	}
}
function showallair() {
	var nav = new Array("air_program","air_shed_description","air_pollution","air_quality_update","outdoor_burning_information","burn_ban_information","wood_smoke","indoor_air_quality","air_monitoring_station","air_quality_links","air_quality_glossary_of_terms","program_contacts");		

	for (x = 0; x < nav.length; x++) {
		var abra = document.getElementById(nav[x]).style;
			if (abra.display != "block") {
				abra.display = "block";
			}
	}
}