function vcfv()
{
    var name = document.cfv.name;
    var email = document.cfv.email;
    var message = document.cfv.message;
    var verif_box = document.cfv.verif_box;


    if (name.value == "")
    {
        window.alert("Please enter your name.");
        name.focus();
        return false;
    }
    
    if (email.value == "")
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }
    if (email.value.indexOf("@", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }
    if (email.value.indexOf(".", 0) < 0)
    {
        window.alert("Please enter a valid e-mail address.");
        email.focus();
        return false;
    }

    if (message.value == "")
    {
        window.alert("Please provide a detailed message or comment.");
        message.focus();
        return false;
    }
    if (verif_box.value == "")
    {
        window.alert("Please enter the number.");
        verif_box.focus();
        return false;
    }
    return true;
    }