Sorry but I'm not the developer. Only send the link as reference. Saludos, Felipe Adalid Ortiz Anzaldo Bibliotecario de sistemas Universidad Iberoamericana Tijuana Biblioteca Loyola http://clavius.tij.uia.mx Ave. Centro Universitario 2501 Playas de Tijuana 22200, Tijuana, B.C. 0 664 630-1577 Ext. 623 adalid at tij.uia.mx