var allFields = new Array(
													"search_posten",
													"search_bussgods",
													"search_dhl"
													);

function updateSearchFields(field) {
	for (i=0; i<allFields.length;i++) {
		if (allFields[i] != field) {
			document.getElementById(allFields[i]).style.display = "none";
		}
	}
	document.getElementById(field).style.display = "block";
	}