Target Effects Toggle

[sunkin]

Hello. not sure how hard this is gonna be but i would love if somebody could help me with this. I currently have 2 macros set up so i can turn off and on the target and implied target effect icons. I rarely want to see those but on occasion(like duels) its nice to have. I'm not sure wether if/else statements are possible in macro's but thats why i am posting. I currently have a macro with /show_target_effects 0 and /show_implied_target_effect 0 and another with the same but 1 instead of 0. Now this works but is there a way to toggle it with one button? any help would be awsome.

Thanks in advance
Sunkin