function check() {
    if (document.getElementById("name").value.replace(" ", "") == 0) {
        alert("Please enter correct name!");
        return false;
    }
    var regEmail = /^[\w.-]+@([a-z0-9\-]+\.)+[a-z]{2,6}$/i;
    if (!regEmail.test(document.getElementById("email").value)) {
        alert("Please enter correct email!");
        return false;
    }
    if (document.getElementById("text").value.replace(" ", "") == 0) {
        alert("Please enter correct text!");
        return false;
    }
    document.getElementById("mail").submit();
}