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

function Reload(){
  v = new Date();
  n = new Date();
  o = new Date();
  for (cn = 0; cn < anz; cn++) {
    Tripi = document.getElementById('Tripi' + cn);
    ss = Tripi.title;
    s = ss - Math.round((n.getTime() - v.getTime()) / 1000.);
    m = 0;
    h = 0;
    if (s < 0) {
      Tripi.innerHTML = "-";
    } else {
      if (s > 59) {
	m = Math.floor(s/60);
	s = s - m * 60;
      }
      if (m > 59) {
	h = Math.floor(m / 60);
	m = m - h * 60;
      }
      if (s < 10) {
	s = "0" + s;
      }
      if (m < 10) {
	m = "0" + m;
      }
      Tripi.innerHTML = h + ":" + m + ":" + s + "";
    }
    Tripi.title = Tripi.title - 1;
  }
 window.setTimeout("Reload();", 999);
}

function TimerHora(){
 Hora = document.getElementById('Hora');
 s = Hora.title;

 if (!s) {
  s = "0";
 }

 if (s > 59) {
  m = Math.floor(s/60);
  s = s - m * 60;
 }
 if (m > 59) {
  h = Math.floor(m / 60);
  m = m - h * 60;
 }
 if (s < 10) {
  s = "0" + s;
 }
 if (m < 10) {
  m = "0" + m;
 }
 Hora.innerHTML = h + ":" + m + ":" + s + "";

 Hora.title++;
 window.setTimeout("TimerHora();", 1000);
}