var module;

try {
    module = angular.module('hjc.services');  
} catch (e) {
    module  = angular.module('hjc.services', []);
}

module.factory('uuid', function() {
    var svc = {
        new: function() {
            function _p8(s) {
                var p = (Math.random().toString(16)+"000000000").substr(2,8);
                return s ? "-" + p.substr(0,4) + "-" + p.substr(4,4) : p ;
            }
            return _p8() + _p8(true) + _p8(true) + _p8();
        },
        
        empty: function() {
          return '00000000-0000-0000-0000-000000000000';
        }
    };
    
    return svc;
});