[flexcoders] Prototyping a form

[markgoldin_2000]

Lets' say I want all my forms to be based on same form. Base form 
would have just a push button. A click of this button might look like 
this:

runButton.addEventListener("click", handleClick);
private function handleClick(e:MouseEvent):void
{
        completeParameters();
        mainApp.reportArea.source = runStrng;
}

I am subclassing main form in mxml. That might look like this:
....
<mx:Script>
<![CDATA[
        private function completeParameters():void 
        {
            runStrng = runStrng + sku.text;
        }    
]]>
</mx:Script>
...

It fails at completeParameters(); during compilation.
Is it possible to have such design working?

Thanks