Targetting different totems and using throw?

So guys, I play a warrior and I PvP. I'm trying to get used to the whole macros save lifes and what not and I wanted to know if you guys new a macro that I could use for what I want to do.

Say a shaman has Spirit Link Totem/Healing Tide totem up along with a capacitor at the same time, Is there a way to target the spirit link with priority over the capacitor but if only a capacitor is up it will target the capacitor?

I would really like to have only one macro for this to saved keybinds and bar space.

Any tips??