function capitaliseFirstLetter(string) {
    return string.charAt(0).toUpperCase() + string.slice(1);
}

$(document).ready(function () {

    $('input#newsletter_name, input#newsletter_email').focus(function () {

        var id = capitaliseFirstLetter($(this).attr("id").substring(11));

        if ($(this).val() == id)
            $(this).attr("value", "");

    });

    $('input#newsletter_name, input#newsletter_email').blur(function () {

        var id = capitaliseFirstLetter($(this).attr("id").substring(11));

        if ($(this).val() == "")
            $(this).attr("value", id);

    });

});