function checkEnewsletterForm () {
	isEmailOk = false;
	nlForm = document.getElementById("enewsletter-form");
	var emailString = nlForm.email.value;
	if (emailString == "") return;
	if (verifyEmail(emailString) == false) {
		alert("E-posta adresinizde hata var. Lütfen kontrol ediniz.");	
	} else isEmailOk = true;
	if (isEmailOk) nlForm.submit();
}