code: public void setFloating(ICalProperty property, boolean enable) {
  		if (enable) {
  			floatingProperties.add(property);
  		} else {
  			removeIdentity(floatingProperties, property);
  		}
  	}
docs: <p>
  Sets whether a property value should be formatted in floating time when
  written to an output stream (by default, floating time is disabled for
  all properties).
  </p>
  <p>
  A floating time value does not have a timezone associated with it, and is
  to be interpreted as being in the local timezone of the computer that is
  consuming the iCalendar object.
  </p>
  @param property the property
  @param enable true to enable floating time for this property, false to
  disable