Actionscript 3 :: Skip An Optional Parameter And Assign Value To The Parameter After The Skipped One?

Can we skip an optional parameter and assign value to the parameter after the skipped one?

For example I have a function:

public function Dialog(message:String,title:String="Note",dialogsize:int=99):void
{
}

I can easily call the function with a message and a title:

Dialog("HELLO","Intro");

Is there a way to skip the title and just pass in the dialogsize? I've tried it but can't make it work:

Dialog("HELLO",,dialogsize);

Is it possible to skip some optional parameters without using (rest) parameter?