Looking for a Stochastics indicator or EA

Does anyone know of a Stochastic indicator that displays not only the default parameter settings in a seperate graph window, but also calculates the mirror image of the Stoch line , using the 50 % level line as the mirror, and displays this line in same window graph ? User also allowed to set parameter variables.... If no one respondes with this kind of indicator would someone be interested in programming it. If More info is needed let me know.
I have since found that the RSI is a better indicator line to Mirror then the Stoch. line Image below is of an Rsi line.

See Attached image as an example .

I have since discovered that the RSI indicator line is more accurate then the Stochiastics line for showing trade entries .. Image above in previous post is of an RSI indicator line.

The mirrored RSI just makes a more visual display of the standard RSI crossing the 50 level.

Thanks cja