//<SCRIPT LANGUAGE="javascript">

function Validate()
{
	var bRet;
	var firstName = document.getElementById("NAME_FIRST");
	var lastName = document.getElementById("NAME_LAST");
	var city = document.getElementById("OFFICE_CITY");
	var zip = document.getElementById("OFFICE_ZIP");
	
	// verify required fields
	if (firstName.value == "" && lastName.value == "" && city.value == "" && zip.value == "")
		return warnInvalid(firstName, "You must provide search criteria");

	// validate numerics
	bRet = checkNumeric(zip, 1, 1);
	if (bRet == false)
		return false;

	// if we got this far, we were successful
	return true;
}