// ----------------------------------------------
// StyleSwitcher functions written by Paul Sowden
// http://www.idontsmoke.co.uk/ss/
// - - - - - - - - - - - - - - - - - - - - - - -
// For the details, visit ALA:
// http://www.alistapart.com/stories/alternate/
//
// nifty StyleSwitcher scripts modified by Aaron Jones 10/10/2002
// ----------------------------------------------

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

// ----------------------------------------------
// Funciones Dreamweaver para rollover
// ----------------------------------------------

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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 MM_findObj(n, d) { //v4.0
  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);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

// ----------------------------------------------
// Funciones para formulario de búsqueda
// ----------------------------------------------

function valido()
{
  if (document.frmbuscador.claves.value=='')
  {
    alert("Debe introducir una o más palabras clave.");
    document.frmbuscador.claves.focus();
  }
  else
  {
    document.frmbuscador.submit();
  }
}
function Buscar()
{
  if (document.frmbuscador.claves.value=='')
  {
    alert("Debe introducir una o más palabras clave");
    document.frmbuscador.claves.focus();
    return false;
  }
  else
  {
    return true;
  }
}

// ----------------------------------------------
// Funciones para el menu inferior de suplementos
// ----------------------------------------------

var previoustab=""

function expandcontent(cid, aobject){
  if (document.getElementById) {
    highlighttab(aobject);
    if (previoustab!="")
      document.getElementById(previoustab).style.display="none";
    document.getElementById(cid).style.display="block";
    previoustab=cid;
  }
}

function highlighttab(aobject){
  if (typeof tabobjlinks=="undefined")
    collecttablinks();
  for (i=0; i<tabobjlinks.length; i++)
    tabobjlinks[i].className="";
  aobject.className="current";
}

function collecttablinks(){
  var tabobj=document.getElementById("tablist");
  tabobjlinks=tabobj.getElementsByTagName("A");
}

function do_onload(){
  if (typeof initialtab != "undefined") {
    collecttablinks();
    expandcontent(initialtab[1], tabobjlinks[initialtab[0]-1]);
  }
}

// ----------------------------------------------
// Funciones para recarga de portadas de seccion
// ----------------------------------------------
function recarga(t) {
  if (xmlhttp) {
    xmlhttp.open("GET", url_refresco, true);
    xmlhttp.onreadystatechange=function() {
      if (xmlhttp.readyState==4) {
        if (fecha_mod>=xmlhttp.responseText)
          setTimeout("recarga("+t+")", t);
        else
          location.href = location.href;
      }
    }
    xmlhttp.send(null);
  }
}
function fecha_modificacion() {
  if (xmlhttp) {
    xmlhttp.open("GET", url_refresco, true);
    xmlhttp.onreadystatechange=function() {
      if (xmlhttp.readyState==4) {
        fecha_mod = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
  }
}
var xmlhttp = false;
var fecha_mod = 0;
/*@cc_on @*/
/*@if (@_jscript_version >= 5)
// JScript gives us Conditional compilation, we can cope with old IE versions.
// and security blocked creation of the objects.
 try {
  xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
 } catch (e) {
  try {
   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (E) {
   xmlhttp = false;
  }
 }
@end @*/
if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  xmlhttp = new XMLHttpRequest();
}

// ----------------------------------------------
// Funcion de recarga de la caja de deportes
// ----------------------------------------------
function cuenta_atras(restante) {
  if (--restante<=0) {
    document.getElementById("cuenta_atras").innerHTML = " | <span style='color:black'>Actualizando<span>";
    xmlhttp.open("GET", "http://www.libertaddigital.com:83/htm/fragmentos/caja_deportes.html", true);
    xmlhttp.onreadystatechange=function() {
      if (xmlhttp.readyState==4) {
        document.getElementById("deportes").innerHTML = xmlhttp.responseText;
        if (document.getElementById("cuenta_atras")) cuenta_atras(181);
      }
    }
    xmlhttp.send(null);
  }
  else {
    document.getElementById("cuenta_atras").innerHTML = " | <span style=\"color:black\"><img src=\"/images/i_reloj.gif\" alt=\"\" /> Actualización en " + restante + " segundos</span>";
    setTimeout("cuenta_atras("+restante+")", 1000);
  }
}

// ----------------------------------------------
// Eventos de carga y descarga de la página
// ----------------------------------------------
window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
  do_onload();
  MM_preloadImages('/files/aa1.gif','/files/aa2.gif','/files/aa3.gif');
  if (typeof url_refresco!='undefined') {
    fecha_modificacion();
    setTimeout("recarga(240000)", 240000);
  }
  if (xmlhttp && document.getElementById("cuenta_atras"))
    cuenta_atras(181);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}