Get index of current array

1 
Array[ArrayVar].addEventListener(MouseEvent.CLICK, funct1);

funct1(e:MouseEvent){
     var curIndex = *** ....?***
}

**Say that ArrayVar is equal to 3 at the time funct1 is triggered. in funct1 i want the variable curIndex to be set as 3. How would i go about this?

thanks in advance.