Creating grooves on dome like feature

Hello,

I am working on a bottle and can not figure out a way to putgrooves an a panel that is shaped like a dome. I have created ajpeg of the old drawing. You can get a good idea what it suppose tolike in Detail "A", Section "A" - "A", Section "B" - "B". In Detail"A" is what I have been trying to create with no luck. I only needthe grooves to be on the surface of the panel, not in two differntdirections as Detail "A" depicts.

I also have a radius error. If the first one is fixed the secondshould get automatically fixed. My boss is on my case, so I have tosend this out as is. I appreciate any help! Thank, RickSolidworksParts And Features