IDE :: Initial Call For A Function

I have the following code:

Code:
for(var i:int = 0; i<buttons.length; i++){
buttons[i].addEventListener(MouseEvent.CLICK, myFunction);
}

[Code]....

I would like to add a code that would add an initial call to the function myFunction, but because it is listening for a MouseEvent, it has to wait until a MouseEvent happens (CLICK)

I thought that I could add a parameter to a function call like this:

Code:
myFunction(e:Event, buttons[0]);
but that did not work.