MC Targeting

programming
1

Ok, so I want to make an rpg style game. The fighting system would need targeting, thus why i’m here.
Basically I want it to work like this: If i click on the enemy, a target arrow or circle pops up around him, but if i click off the target arrow/circle, ect. disappears.
I just want to get this done first i’ll start worrying about other stuff soon enough.

Here is what I have, but its not working.

A mc named Ball ( who would be the enemy) with the actionscript

on (press) {
	focus == true;
}

a text box to let me know if it is targeted. its a dynamic text box with the var and instance of txtfocus.

and finally on the timeline i have

if (focus = true) {
	txtfocus = "sauce";
} else {
	focus = false;
}

So far its not working, any tips or help? or even a way to do it better?
thanks–