function infoLegal(s) {
var ancho= 800;
var alto= 400;
var vleft = (screen.width-ancho)/2;
var vtop = (screen.height-alto)/2;
pagina="legal/index.htm";
if (s!="index") pagina="../"+pagina;
open(pagina,"","toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,scrollbars=no,width="+ancho+",height="+alto+",top="+vtop+",left="+vleft);
}

function ferias() {
var ancho= 600;
var alto= 600;
var vleft = (screen.width-ancho)/2;
var vtop = (screen.height-alto)/2;
pagina="ferias_congresos/index.htm";
open(pagina,"","toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,scrollbars=auto,width="+ancho+",height="+alto+",top="+vtop+",left="+vleft);
}