JavaScript : Get distinct / unique values

gistfile1

// Get distinct values from an array

$.extend({
    distinct : function(anArray) {
       var result = [];
       $.each(anArray, function(i,v){
           if ($.inArray(v, result) == -1) result.push(v);
       });
       return result;
    }
});
var arrValues = [1,1,2,3,4,4,5,6,6];
var arrUniques = $.distinct(arrValues);