problem when retrieving entity reference from another entity

hi frnds,

when i retrieve entity reference value from another entity i cant get the name and id of the field.. it retruns the object but if am doing object.id it saying undefined.my code is

populatewithconnectiondata = function (){
 
   
    var odataSelect = "http://XXX:5555/XXX/xrmservices/2011/OrganizationData.svc/ConnectionSet?$select=Record2Id&$filter=Record2RoleId/Id eq guid'F55E1379-FD99-E011-9939-000C2917832C' and Record1Id/Id eq guid'0D84F247-4686-E011-B58D-000C2917832C'"
 
$.ajax({
        type: "GET",
        contentType: "application/json; charset=utf-8",
        datatype: "json",
        url: odataSelect,
        beforeSend: function (XMLHttpRequest) { XMLHttpRequest.setRequestHeader("Accept", "application/json"); },
        success: function (data, textStatus, XmlHttpRequest)
           {
               
// Use this method for a selection that  return single entity
         RetrieveEntityData(data.d);
                  
           },
        error: function (XmlHttpRequest, textStatus, errorThrown) { alert('OData Select Failed: ' + odataSelect); }
    });
 }

function RetrieveEntityData(ManyEntities){
for( i=0; i< ManyEntities.length; i++)
 var oneEntity = ManyEntities[i];
 var ConnectedContactId = oneEntity.Record2Id.Id;

 alert(ConnectedContactId)/here saying undefined
}
 }

pls give mea solution as soon as possible thanx in advance

Arun Kumar G