[RESOLVED] Need help with importing and creating a class

Howdy, I'm almost there....

This is working

PHP Code:

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import flash.external.*;
test.onRelease = function():Void{
    ExternalInterface.call("html_alert");
} 


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.....but i would like to put it into a class, something like....

PHP Code:

---

class Test extends MovieClip{
   function Test(){
      this.onRelease = function():Void{
        ExternalInterface.call("html_alert");
        }
    }
} 


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That however will give this error message...

PHP Code:

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There is no method with the name 'ExternalInterface'.
                 ExternalInterface.call("html_alert"); 


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Can anyone tell me which step I need to add to get this one up and going? Pretty sure I have to inherit the properties of the ExternalInterface class somehow, but I'm going around in circles here.

Thanks in advance.

Simplest solution ever ( always seems to happen after posting a cry for help )...

..needed to add the import statment to the Test.as class file, do'h.

PHP Code:

---

 import flash.external.*;
class Test extends MovieClip{
   function Test(){
      this.onRelease = function():Void{
        ExternalInterface.call("html_alert");
        }
    }
} 


---