/** Initialises the wizard */
  @Override
  public void init(Map<String, String> params) {
    super.init(params);

    // reset all variables
    this.firstName = "";
    this.lastName = "";
    this.userName = "";
    this.password = "";
    this.confirm = "";
    this.email = "";
    this.companyId = "";
    this.homeSpaceName = "";
    this.homeSpaceLocation = getDefaultHomeSpace();
    this.presenceProvider = "";
    this.presenceUsername = "";
    this.organisation = "";
    this.jobtitle = "";
    this.location = "";

    this.sizeQuota = null;
    this.sizeQuotaUnits = "";
  }
 @Override
 public void init(Map<String, String> parameters) {
   super.init(parameters);
   init();
 }