JavaScript - textFrames.itemByName

Hi,

I can acces any script named text frame into my program variable using the below line in InDesign CS3 version,

var myfootnote=myDoc.pages[0].textFrames.itemByName('framename');

But the same line, does not work with InDesign CS5.5 version. What is the right way to get named text frames in InDesign CS5.5?

Best wishes,

Saravanan