Removing footnote

Hi,

I tried following code but the footnotes from indesign are not removed
and Iam getting error

var myDocument = app.activeDocument;
var ftcnt = 0;
for(var s=1; s<=myDocument.stories.count(); s++){
var st = myDocument.stories;
ftcnt = st.footnotes.count();
for(vat fn=1; fn <= ftcnt; fn++){
st.footnotes[fn].remove();
}
}