var ContextUser       = 1;
var ContextMachine    = 2;

var bMachine = false,
var CRYPT_STRING_ANY      = 0x00000007;

function XE_Enroll_AcceptResponse_NPAPI(objEnroll, sPKCS7, bMachine) {
    var EnrollmentContext;

    if (bMachine) {
        EnrollmentContext = ContextMachine;
    }
    else {
        EnrollmentContext = ContextUser;
    }

    objEnroll.Initialize(EnrollmentContext);
    objEnroll.InstallResponse(AllowNone, sPKCS7, CRYPT_STRING_ANY, "");
}