Comparing Two Pairs

I've never written a MT4 indicator, but I'd like an indi to compare 2 pairs in both pips and % since the daily open or a user defined time frame. Maybe have the option to popup alerts if target are hit.

Seems like a simple indi but I'm afraid I'm lost. Anyone want to help me figure it out?

try this

http://www.forexfactory.com/attachme...0&d=1238455499

Thanks! That's an interesting indi but isn't quite what I'd like. It would need to be able to draw a line chart and set the beginning TF of comparision to 0%. Also should display the difference in the 2 pairs in both pips and %.

It's a good indi though so thanks for that one.