function AddNotes(EntityName, EntityId,NoteText) {
var serverUrl = Xrm.Page.context.getClientUrl();
var ODATA_ENDPOINT = "/XRMServices/2011/OrganizationData.svc";
var objAnnotation = new Object();
var ODATA_EntityCollection = "/AnnotationSet";
objAnnotation.NoteText = NoteText;
objAnnotation.Subject = "Subject";
var refAccount = new Object();
refAccount.LogicalName = EntityName;
refAccount.Id = EntityId;