Ehler Stochastic Cyber Cycle Signals/Alerts

This script works based on everget's version of Ehler Stochastic Cyber Cycle. Unlike everget's work, my adaptation prints only crossovers into the chart that occur above or below the overbought/oversold zone.

You can find everget's script with all related documentation here

I didn't change the calculation, I only reinvented how it is presented on the chart and added alerts.