code: static public void setGlobalContactFilter(short categoryBits, short groupIndex,
  			short maskBits) {
  		globalFilterA = new Filter();
  		globalFilterA.categoryBits = categoryBits;
  		globalFilterA.groupIndex = groupIndex;
  		globalFilterA.maskBits = maskBits;
  	}
docs: Creates new contact filter for ALL LIGHTS with give parameters
  
  @param categoryBits - see {@link Filter#categoryBits}
  @param groupIndex   - see {@link Filter#groupIndex}
  @param maskBits     - see {@link Filter#maskBits}