if (_showNavigation.equals("true")) { return true; }  return false;
return _showNavigation.booleanValue();
    public boolean showNavigation() {        if (_showNavigation ==null) {            Object v = (Object)this.valueForBinding("showNavigation");            if (ERXValueUtilities.booleanValue(v)) {                _showNavigation = "true";            }else {                _showNavigation = "false";            }        }        if (_showNavigation.equals("true")) {            return true;        }        return false;    }