function NuevoAjax(){
var xmlhttp=false;
try{
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
}catch(e){
	try{
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
 	}catch(E){
		xmlhttp = false;
	}
}

if(!xmlhttp && typeof XMLHttpRequest!='undefined'){
	xmlhttp = new XMLHttpRequest();
}
return xmlhttp;
}
function Cargar(url,destino){
//document.form1.estamosen.value=url;
//toggleBox('demodiv3',0);
var contenido, preloader;
contenido = document.getElementById(destino);
preloader = document.getElementById('preloader');
ajax=NuevoAjax();
ajax.open("GET", url,true);
ajax.onreadystatechange=function(){
	if(ajax.readyState==1){
		preloader.innerHTML = "<div align='center'><br>Cargando...</div>";
			preloader.style.background = "url('loading.gif') no-repeat center";
	}else if(ajax.readyState==4){
		if(ajax.status==200){
			contenido.innerHTML = ajax.responseText;
			//preloader.innerHTML = "Cargado.";
			preloader.innerHTML = "";
			preloader.style.background = "url('loaded.gif') no-repeat center";
		}else if(ajax.status==404){
			preloader.innerHTML = "La página no existe";
		}else{
			preloader.innerHTML = "Error:".ajax.status;
		}
	}
}
ajax.send(null);
}
function CargarDos(url,destino){
//document.form1.estamosen.value=url;
//toggleBox('demodiv3',0);
var contenidos2, preloaders2;
contenidos2 = document.getElementById(destino);
preloaders2 = document.getElementById('preloader');
ajaxs2=NuevoAjax();
ajaxs2.open("GET", url,true);
ajaxs2.onreadystatechange=function(){
	if(ajaxs2.readyState==1){
		preloaders2.innerHTML = "<div align='center'><br>Cargando...</div>";
		preloaders2.style.background = "url('loading.gif') no-repeat center";
	}else if(ajaxs2.readyState==4){
		if(ajaxs2.status==200){
			contenidos2.innerHTML = ajaxs2.responseText;
			//preloader.innerHTML = "Cargado.";
			preloaders2.innerHTML = "";
			preloaders2.style.background = "url('loaded.gif') no-repeat center";
		}else if(ajaxs2.status==404){
			preloaders2.innerHTML = "La página no existe";
		}else{
			preloaders2.innerHTML = "Error:".ajax2.status;
		}
	}
}
ajaxs2.send(null);
}