function skip () { this.blur(); }
function togglefields(form, status) {

    if (arguments.length < 1) {
        alert("function subWindow called with " + arguments.length +
              " arguments, but it expects at least 1 arguments.");
        return null;
    }

    for (var i = 0; i < form.length; i++) {
        if (form.elements[i].togglefield) {
            if (status == 1) {
                form.elements[i].disabled = false;
                form.elements[i].onfocus = null;
            } else {
                form.elements[i].disabled = true;
                form.elements[i].onfocus = skip;
            }
        }            
    }
}