function agregar(){
   if ((navigator.appName=="Microsoft Internet Explorer") && (parseInt(navigator.appVersion)>=4)) { 
      var url=location.href; 
      var titulo=document.title; 
      window.external.AddFavorite(url,titulo); 
   } 
   else { 
         alert ("Presione Crtl+D para agregar Paraninfo a sus Marcadores"); 
   } 
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function idioma(lang) {
var url = location.href;
window.location = url.substring(0,url.indexOf("=")+1)+lang;
}