$(document).ready(function(){
    $("#NewsletterButton").click(function(){
        var email = $("#emailaddr").val();
        data = "email="+email;
        var response = '';
        $.ajax({
            type: "POST",
            url: "index.php?pid=subscribe",
            async: false,
            data: data,
            success : function(text){              
                response = text;          
            }
        });
        
        alert(response);
        return false;
    });
});