What is the object name given to TLF textbox?

Hi,

I have a TLF read-only text box. What is the object name given to these objects?

For instance, movie clip objects are of type: MovieClip

The context to which I am using this is the following:

A ROLL_OVER listener is attached to hundreds of TLF text box objects. They all share the shame listener method (onRollOver). When the method is called, the particular object whose listener got activated is given a reference:

var txtbox:MovieClip=event.target as MovieClip;

However, it is not a movieclip object. I need to know what type of object a TLF text box is. I have tried: TLFTextField and TextField. These give an error.

Thank you,

Anthony C.