var nn4 = document.layers ? true:false;


<!-- Begin
var days = new Array();
var msgs = new Array();

var months = new Array("", 
"Enero", "Febrero", "Marzo", "Abril", "Mayo", "Junio",
"Julio", "Agosto", "Septiembre", "Octubre", "Noviembre", "Diciembre"
);

var today = new Date(); // today
var mon = months[today.getMonth() + 1]; // month
var day = today.getDate(); // day
var year = y2k(today.getYear()); // year

function dateMsg() {
for (i = 0; i < days.length; i++) {
tempdate = new Date(days[i]);
tempmonth = months[tempdate.getMonth() + 1];
tempday = tempdate.getDate();
tempyear = y2k(tempdate.getYear());
if (year == tempyear && mon == tempmonth && day == tempday)
return(days[i] + ".  " + msgs[i]); // returns day message
   }
return(day + " de " + mon + " de " + year + ""); // returns default
}

// Y2K Fix Function
function y2k(year) {
if (year < 2000)		
year = year + 1900;
return year;
}
//  End -->



<!--
function MM_findObj(n, d) { //v3.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}
function MM_nbGroup(event, grpName) { //v3.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    if ((nbArr = document[grpName]) != null)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = args[i+1];
      nbArr[nbArr.length] = img;
  } }
}

function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

//-->

function Abrir_ventana (pagina) {
var opciones="toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=780,height=450,top=55,left=5";
window.open(pagina,"",opciones);
}



function showFull(id) { 
		var block = document.getElementById(id);
		if(block.style.display == 'none' || block.style.display == '')
			block.style.display = 'block';
		else
			block.style.display = 'none';
			
		//alert(block.style.display);
}
function hideID(id) { 
		var block = document.getElementById(id);
		block.style.display = 'none';
}

function showID(id) { 
		var block = document.getElementById(id);
		block.style.display = 'block';
}