window.onload = function() {
       Sortable.create('toplist1', 
       {containment: ['toplist1','toplist2','toplist3'], dropOnEmpty: false});
       Sortable.create('toplist2', 
       {containment: ['toplist1','toplist2','toplist3'], dropOnEmpty: false});
	   Sortable.create('toplist3', 
       {containment: ['toplist1','toplist2','toplist3'], dropOnEmpty: false});
   }