How to use Sort By desc by default with toggle link enabled? I am using better exposed filter and added toggle link sorting for a field. But the toggle link sort Asc order on first click. I want to make it Sort Desc on first click. 

I tried to write : 

MyField Desc|MyLabel
MyField Asc|MyLabel


But it doesn't work.
I didn't found any suitable way to do this. What I actually did, I changed the link using jQuery.