function mostrarContacto() {
  obj = document.getElementById('contacto');
  obj.style.display = (obj.style.display=='none') ? 'block' : 'none';
  document.getElementById('lnk_contact').innerHTML = (obj.style.display=='none') ? 'Mostrar' : 'Ocultar';
}

function mostrarFile() {
  obj = document.getElementById('file');
  obj.style.display = (obj.style.display=='none') ? 'block' : 'none';
  document.getElementById('lnk_file').innerHTML = (obj.style.display=='none') ? 'Mostrar' : 'Ocultar';
}

function mostrarMap() {
  obj = document.getElementById('map');
  obj.style.display = (obj.style.display=='none') ? 'block' : 'none';
  document.getElementById('lnk_map').innerHTML = (obj.style.display=='none') ? 'Mostrar' : 'Ocultar';
}

function show_clock() {

		//show clock in NS 4
		if (document.layers)
                document.ClockPosNS.visibility="show"
		if (old == "die") { return; }

		var Digital = new Date();
		var hours = Digital.getHours();
		var minutes = Digital.getMinutes();
		var seconds = Digital.getSeconds();

		if (my12_hour) {
			dn = "AM";
			if (hours > 12) { dn = "PM"; hours = hours - 12; }
			if (hours == 0) { hours = 12; }
		} else {
			dn = "";
		}
		if (minutes <= 9) { minutes = "0"+minutes; }
		if (seconds <= 9) { seconds = "0"+seconds; }

		myclock = '';
		myclock += '<span class="txt-004">';
		myclock += hours+':'+minutes+':'+seconds+' '+dn;
		myclock += '</span>';

		if (old == "true") {
			document.write(myclock);
			old = "die"; return;
		}

		if (document.layers) {
			clockpos = document.ClockPosNS;
			liveclock = clockpos.document.LiveClockNS;
			liveclock.document.write(myclock);
			liveclock.document.close();
		} else if (document.all) {
			LiveClockIE.innerHTML = myclock;
		} else if (document.getElementById) {
			document.getElementById("LiveClockIE").innerHTML = myclock;
		}

		setTimeout("show_clock()",1000);
}

function Fecha()
{
	meses = new Array("Enero","Febrero","Marzo","Abril","Mayo","Junio","Julio","Agosto","Septiembre","Octubre","Noviembre","Diciembre");

	data = new Date();
	index = data.getMonth();
	diasemana=new Array("Lunes","Martes","Miércoles","Jueves","Viernes","Sábado","Domingo");
	
	indexday = data.getDay();
	if (indexday == 0)
	indexday = 7;
	any = data.getYear();
	if (any < 1900)
	any = 1900 + any;
	document.write(diasemana[indexday-1]+ "," + ' '+meses[index]+ " " + data.getDate() + ", " + any);
}