function abrirPrivacidad()
{
posx=((screen.availWidth-300)/2)
posy=((screen.availHeight-230)/2)
eval("boxwindow=window.open('privacidad.html','boxwindow','width=300,height=230,toolbar=0,directories=0,status=0,scrollbars=1,resize=0,menubar=0,screenx="+posx+",screeny="+posy+",left="+posx+",top="+posy+"')")
}