function checkMailFields_en() {
	var isim = $('isim').value;
	var email = $('email').value;
	var re = /^[a-z0-9._%-]+@[a-z0-9.-]+\.[a-z]{2,4}$/i;
	if(isim!="" && email!="" && re.test(email)) {
		$('updateArea').setText('Lütfen bekleyin');
		new Ajax('email_en.php',{
			update: 'updateArea',
			data: 'isim=' + isim + '&email=' + email
		}).request();
	} else if(!re.test(email)) {
		$('updateArea').setText('Please enter a valid e-mail address.');
	} else {
		$('updateArea').setText('Please fill the both of two aeras.');
	}
}