code: function _same_set(set1, set2){
  	var h1 = {};
  	var h2 = {};
  	for( var h1i = 0; h1i < set1.length; h1i++ ){ h1[set1[h1i]] = 1; }
  	for( var h2i = 0; h2i < set2.length; h2i++ ){ h2[set2[h2i]] = 1; }
  	return _same_hash(h1, h2);
      }
docs: Looking at array as sets of...something. DEPRECATED