// Funcion para crear Bookmarks en  navegadores IE/Mz
function CreateBookmark(title, others) 
{ 
if ((navigator.appName=="Microsoft Internet Explorer") &&
 (parseInt(navigator.appVersion)>=4)) {
 window.external.AddFavorite(location.href,title);
 } else {
 alert(others);
 }
}

// Funcion para regresar en el navegador
function goBack(n){
 if (navigator.appName != "Microsoft Internet Explorer"){
 window.back(n);
 }
 else{
 history.back(n);
 } 
}

// Funcion para asignar PageLinker a un elemento
function UpdateLink(ctrlId)
{
    //http://code.google.com/apis/analytics/docs/tracking/gaTrackingSite.html#trackingIFrames
	_gaq.push(function() {
      var pageTracker = _gat._getTrackerByName();
      var iframe = document.getElementById("_ctl0_" + ctrlId);
      iframe.src = pageTracker._getLinkerUrl(iframe.src);
    });

    //https://www.google.com/support/forum/p/Google+Analytics/thread?tid=6411a71d9f528f28&hl=en
//    var iframe = document.getElementById("_ctl0" + ctrlId);
//    iframe.src = _gaq.push(['_getLinkerUrl', iframe.src]);
}