// JavaScript Document
var url="http://www.avis.com.bo" 
var titulo="Avis.com.bo - Rent a car"
function agregar(){
if (document.all)
window.external.AddFavorite(url,titulo)
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}