function checkData() {
  var f1 = document.forms[1];
  var wm = "Para acceder al área de cliente debe rellenar los siguientes campos :\n\r\n";
  var noerror = 1;
  var t1 = f1.usuario;
  if (t1.value == "" || t1.value == " ") {
    wm += "- Usuario\r\n";
    noerror = 0;
  }
  var t1 = f1.clave;
  if (t1.value == "" || t1.value == " ") {
    wm += "- Contraseña\r\n";
    noerror = 0;
  }
  if (noerror == 0) {
    alert(wm);
    return false;
  }
  else return true;
}
//-->

var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbars=yes,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+', screenX='+left+',screenY='+top+'');
}
function popUpWindow1(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+', screenX='+left+',screenY='+top+'');
}

var monthNames = new makeArray(12);
monthNames[0] = "Enero";
monthNames[1] = "Febrero";
monthNames[2] = "Marzo";
monthNames[3] = "Abril";
monthNames[4] = "Mayo";
monthNames[5] = "Junio";
monthNames[6] = "Julio";
monthNames[7] = "Agosto";
monthNames[8] = "Septiembre";
monthNames[9] = "Octubre";
monthNames[10] = "Noviembre";
monthNames[11] = "Diciembre";

var dayNames = new makeArray(7);
dayNames[0] = "Domingo";
dayNames[1] = "Lunes";
dayNames[2] = "Martes";
dayNames[3] = "Miércoles";
dayNames[4] = "Jueves";
dayNames[5] = "Viernes";
dayNames[6] = "Sábado";

var now = new Date();
var year = now.getYear();

if (year < 2000) year = year + 1900;

function makeArray(len) 
{
for (var i = 0; i < len; i++) this[i] = null;
this.length = len;
}

function borrar()
{
email.value="";
}