function ValidateEntry(e) {
    var code;
    if (!e) { e = window.event; }
    if (e.keyCode) {
        code = e.keyCode;
    } else {
        if (e.which) {
            code = e.which;
        }
    }
    if (code == 60) {
        return false;
    }
}

function CheckForEscape(e) {
    var overlay = document.getElementById("Overlay");
    if (overlay != null) {
        if (overlay.style.visibility == "visible") {
            var code;
            if (!e) { e = window.event; }
            if (e.keyCode) {
                code = e.keyCode;
            } else {
                if (e.which) {
                    code = e.which;
                }
            }
            if (code == 27) {
                overlay.style.visibility = "hidden";
            }
        }
    }
}