Drag and Drop Image

Question

hi
i need to a sample code for this solution :
i have 2 grid in page,one of them is in left place and into it is many Image
and another grid is in right place ,below like :


------------------------------------  -------------------------------------
  place Image  | |  place Drop Image  |
-----------------------------------  --------------------------------------
now i'll drag and drop a Image from place Image into Place Drop Image
please help me for solve it
thanks