This simple script takes two ma's sums them and takes the the difference between the current and previous data points. This gives a lovely smoothed momentum indicator. The way it works is if its green its good and if its red its bad. In other words, I take the smooth signal as a filter for the momentum. You can also spot divergences between the indicator and the price to make decisions. Some features include extra smoothing and adjustable ma's. I hope you find this script useful!