function objetoAjax(){

	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 load_page(url)

{

	divresultado=document.getElementById('base_textos');

	var Aleatorio=parseInt(Math.random()*99999999);

	ajax=new objetoAjax();

	ajax.open("GET",url +"rand=" + Aleatorio,true);

	ajax.onreadystatechange=useHttpResponse;

	ajax.send(null)

}

function show_paises(tabla)

{

	divresultado=document.getElementById('paises');

	var Aleatorio=parseInt(Math.random()*99999999);

	ajax=new objetoAjax();

	ajax.open("GET", "paises.php?tabla="+tabla+"&rand=" + Aleatorio,true);

	ajax.onreadystatechange=useHttpResponse;

	ajax.send(null)

}

function useHttpResponse() {

	

   if (ajax.readyState == 4) 

   {

   		 if(ajax.status == 200) 

		{

			divresultado.innerHTML=ajax.responseText;

			

		}

  } 

  else 

  {

  divresultado.innerHTML = 'cargando...';

  }


}