var http_peticion = false;
var http_capa = "";

function hazPeticion(url,capa)
{
  http_peticion = false;
  document.getElementById(capa).innerHTML='CARGANDO ...';

  if (window.XMLHttpRequest)
  { // Mozilla, Safari,...
    http_peticion = new XMLHttpRequest();
    if (http_peticion.overrideMimeType)
    {
      http_peticion.overrideMimeType('text/xml');
    }
  }
  else if (window.ActiveXObject)
  { // IE
    try
    {
      http_peticion = new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e)
    {
      try
      {
        http_peticion = new ActiveXObject("Microsoft.XMLHTTP");
      }
      catch (e) {}
    }
  }else{
    alert("Navegador no compatible con AJAX.");
  }

  if (!http_peticion)
  {
    alert('No de puede crear una instancia XMLHTTP');
    return false;
  }
  http_capa = capa;
  http_peticion.onreadystatechange = muestraContenido;
  http_peticion.open('GET', url, true);
  http_peticion.send(null);
}

function muestraContenido()
{
  if (http_peticion.readyState == 4)
  {
    if (http_peticion.status == 200)
    {
      document.getElementById(http_capa).innerHTML=http_peticion.responseText;
    }
    else
    {
      alert('Hay un problema en la petición AJAX.');
    }
  }
}

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) { //v4.01
  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 && d.getElementById) x=d.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];}
}

function ver(id,objeto){
  var navegador = navigator.userAgent;    
  var esIE = navegador.indexOf("MSIE");

  if(esIE > -1) 
  {
    var c = document.all;
    for(i = 0; i < c.length; i++)
    {
      var aux = String(c(i).id);
      var aux2 = "";
      if (c(i).tagName == "A" && String(c(i).id) != "" && aux.indexOf("e_") == 0 && aux != "e_"+id)
      {
        aux2 = aux.substr(aux.indexOf("e_")+2);     
        document.getElementById("menu_"+aux2).style.display = "none";
      }
    }
  }else{
    var c = document.getElementsByTagName("body")[0].getElementsByTagName("*");
    for(i = 0; i < c.length; i++)
    {
      var aux = String(c[i].id);
      var aux2 = "";
      if (c[i].tagName == "A" && String(c[i].id) != "" && aux.indexOf("e_") == 0 && aux != "e_"+id)
      {
        aux2 = aux.substr(aux.indexOf("e_")+2);     
        document.getElementById("menu_"+aux2).style.display = "none";
      } 
    }
  }

  if (document.getElementById("menu_"+id).style.display == "none"){
	document.getElementById("menu_"+id).style.display = "block";
	document.getElementById(objeto).onmouseout=""; 
  }else{
    document.getElementById("menu_"+id).style.display = "none";
    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 cambia_mes(idioma,seccion,mes){
  hazPeticion("./manifesta8.estructura.calendario?idioma="+idioma+"&seccion="+seccion+"&mes="+mes+"&cabecera=N","calendario");
}
function cambiar_color_over(celda,color,enlace){ 
   celda.style.backgroundColor = color;
   document.getElementById(enlace).className="submenus2";
} 
function cambiar_color_out(celda,enlace){ 
   celda.style.backgroundColor="";
   document.getElementById(enlace).className="submenus";
}