function generate_address( username ) {
    var x1 = "blackstage.co.uk";
    var x2 = "&#64";
    var x3 = username;
    var x4 = x3 + x2 + x1;
    document.write("<" + "a" + " " + "title=" + "'Blackstage'"  + "href=" + "ma" + "ilto:" + x4 + "?subject=A_message_from_the_Blackstage_Locks_Web_Site>" + x4 + "</a>");
    }

function cleardefault(formfield){
if (formfield.defaultValue==formfield.value)
formfield.value = ""
}