title: How to freez an element after drop in container?
body: <p>I have some elements which are <code>draggable</code>.</p>
  
  <p>you can check <a href="http://jsfiddle.net/Neha_Maniyar/SRPm2/18/" rel="nofollow">here</a> </p>
  
  <p>I want to freeze these elements after dropping into particular container.
  you can say that i have to drop one element into one block, it cannot be dropped to other blocks.</p>