public boolean isValidDate(){
		String date = getDate();
		if(date.length()<10 || (!(!isValidNum(date.substring(0, 4)) && !isValidNum(date.substring(5,7)) && !isValidNum(date.substring(8,10))) && (!isValidNum(date.substring(0, 4)) || !isValidNum(date.substring(5,7)) || !isValidNum(date.substring(8,10)))))
			return false;
		return true;
	}