function isDate(val) {
if (val.search(/^\d{1,2}\/\d{1,2}\/\d{2,4}$/) != 0)
return false;return true;}
function isDateValid(input) {
var inputDate = null;if (isDate(input)) {
inputDate = parseDateFromString(input);}
if (inputDate == null)
return false;return true;}
function parseDateFromString(input) {
var date = null;try {
date = Date.parseInvariant(input, "MM/dd/yyyy", "MM/dd/yy");}
catch (e) {
date = null;}
return date;}