function reqField(fields, label, defaultValue) {
	var flag = -1, fArray = (typeof(fields.length) != "undefined")? fields : new Array(fields);
	for (i=0; i < fArray.length; i++) if ((fArray[i].value == "") || (fArray[i].value == defaultValue)) {
		flag = i;
		break;
	}
		
	if (flag >= 0) {
		alert("The " + label + " is required to complete this form.");
		fArray[flag].select();
		fArray[flag].focus();
		return true;
	} else {
		return false;
	}
}