function GetElm(sID) { return document.getElementById(sID); }

function UpdateSignup(bHasFocus) {

    var sText, _TextBox;

    sText = CNText;
    _TextBox = GetElm(CNTextName);

    if (_TextBox != null) {
        if (bHasFocus) {
            if (_TextBox.value == sText) {
                _TextBox.value = "";
                _TextBox.className = "EmailTextBox TBBlack EmailInner";
            }
        }
        else {
            //If we are losing focus and they didn't enter a email, reset it.
            if (_TextBox.value == "") {
                _TextBox.value = sText;
                _TextBox.className = "EmailTextBox TBGrey EmailInner";
            }
        }
    }
}