function abrir_ventana_aviso_legal()
{
open("aviso_legal.asp", "aviso", "toolbar=no,location=no,directories=no,menubar=no,status=no,scrollbars=no,resizable=no,copyhistory=no,width=500,height=360, left=" + (screen.width - 500) / 2 + " , top=" + (screen.height - 360) / 2 + " ,alwaysraised=yes , z-lock=yes , outerwidth=0, outerheight=0");
}