function validateEmail(emailField, validateField) {
	var d = document.getElementById(validateField);		

	var emailPattern = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/;		
	if (emailPattern.test(emailField.value)) {
		d.style.display = 'none'; //'none';
	} else {
		d.style.display = ''; //'none';			
	}
}