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";
// Array de los días
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 fecha(){
     document.write( dayNames[now.getDay()] + " " + now.getDate() + " de "+ monthNames[now.getMonth()] + " " +" de " + year);
}

function marcartodo(){
   for (i=0;i<document.formcat.elements.length;i++)
      if(document.formcat.elements[i].type == "checkbox")
         document.formcat.elements[i].checked=1
}
function desmarcartodo(){
   for (i=0;i<document.formcat.elements.length;i++)
      if(document.formcat.elements[i].type == "checkbox")
         document.formcat.elements[i].checked=0
}