public boolean increment(T myKey,double increment) {
	  boolean newObject=false;
	  Double myValue=get(myKey);
	  if (myValue==0) {
		myValue=new Double(increment);
		if (increment>0) {
		  newObject=true;
		}
	  }
	  else {
		myValue=new Double(myValue.doubleValue()+increment);
	  }
	  put(myKey,myValue);
	  return newObject;
	}