How to get event.target

I made a textfield inside movieclip
Movieclip name is ‘mc’ and textfield name is ‘txt’

mc
----txt

I wrote as following code.


mc.sound = “1”
mc.addEventListener(“click”,onClick_mc)
mc.buttonMode = true

function onClick_mc(event) {
trace(event.target.sound);
}

when I clicked on mc area without txtField area, it worked ok.
but when I clicked txtfield area which was in movieclip area, it had error…
Also buttomMode attribute not work in textfield area

Anybody help me…please…