function checkZIP_POST(val)
{
	var regex = new RegExp("^((\\d{5}-\\d{4})|(\\d{5})|([AaBbCcEeGgHhJjKkLlMmNnPpRrSsTtVvXxYy]\\d[A-Za-z]\\s?\\d[A-Za-z]\\d)|([A-PR-UWYZ]{1,2}[0-9]{1,2}[ABEHJMNPRVWXY]?)\\s?([0-9][ABD-HJLNP-UW-Z]{2})|(GIR)\\s?(0AA))$")
	
	return regex.test(val);
}