// JavaScript Document

function historial(){
document.write(' <img src="../images/estabas_aqui_nm.gif" width="40" height="20" align="absmiddle" alt="" /><strong>::Estabas aquí: </strong>' + '<a href="javascript:history.back()">' + document.referrer + '</a>' + '<br />');
document.write('<img src="../images/estas_aqui_nm.gif" width="40" height="20" align="absmiddle" alt="" /><span class="estas_aqui">:Y ahora estás aquí: </span>' + '<span class="sitio_exacto">' + document.location + '</span>' +'<br />');
document.write('<img src="../images/estas_imagen.gif" width="200" height="20" align="absmiddle" alt="" />');
}