Finding a word on a certain layer.

How would I go about finding a word on a certain layer?

I can't seem to find the properties I am looking for. 

I would think it would be something like 

for (i=0; i<(numWords-1); i++)

  {

                    ckWord1 = this.getPageNthWord(p, i, true);

if(ckWord1==myWord)

{

  app.alert(ckWord1.parentLayer);

}

}

I would like to be able to make it search for a word on a particular layer.