Putting playlists back into my order

Hi,

I had all my track in my playlists in certain orders. ie. tunes I am definitely playing near the top. I accidentally click title from the drop down menu and it had put all my playlists into alphabetical order. 

How the hell do I change it back to how I had it before?  This has changed every one of my playlists into alphabetical order and will be very time consuming to rearrange. 

HELP!