[Sergei-b84]

Вот полный код проверки емайлов:

function check_email()
{
var email = $("#email").val();
    
    if (email == "")
    {
        $("#email_error").show();
        return false;
    }
    else
    {
        if (validateEmail(email))
        {
		
			$.ajax({
				type : "POST",
				url : "email_pass_check.php", // url îòïðàâëÿåì email ìåòîäîì POST
				data : "email="+ email,
				success : function(result) {
				// åñëè email â áàçå åñòü, òî îøèáêó íå âûâîäèì 
				if (result == 1) {
				$("#email_error").hide();
			    return true;
				} else {
				// åñëè email â áàçå íåò, òî âûâîäèì îøèáêó
				$("#email_error").show();
				$("#email_error").html("The email address you entered does not belong to any account. You can login using any email associated with your account. Make sure that it is typed correctly.");
				return false;
								
				}
				},
				});	
        }
        else
        {
             $("#email_error").show();
			 $("#email_error").html("Please enter an email address in the following format [email]ani@lookingschools.com[/email]");
             return false;
        }
    }
}

function validateEmail(email) {
    var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
}