Here's a new version with color goodness and using CL1! as the gold spot source (longer history).
This indicator shows the ratio between the DJIA and the price of gold. When the ratio is below 5 it is generally accepted that a rotation from commodities to equities should be investigated. When the ratio is above 30 it is, likewise, advised to consider rotating from equities to commodities. This is a modest improvement of the script to mark the key thresholds...