change index in sortable UI - help me out

change index in sortable UI - help me out

Dear friend looking on this Demo:
http://forresst.github.io/demos/sortable/en/index.html

In my application I am using the same with the touchswipe js api.

In this demo whenver we are dragging an element say "item 6" to the position "item 2" every element on the list get shift one index down.

However, I am luking for the solution just to Interchange the image on drop and rest of the elements position remain same.

Help me out