function abreVentana(direccion, ancho, alto) { var show_scrolls = "no"; var ancho_win = ancho; var alto_win = alto; if (ancho>(screen.width-50)){ ancho_win=screen.width-50; show_scrolls = "yes"; } if (alto>(screen.height-50)){ alto_win=screen.height-50; show_scrolls = "yes"; } var izquierda=(screen.width-ancho)/2; var arriba=(screen.height-alto)/2-15; ventana=window.open("", "", "width="+ancho_win+",height="+alto_win+",left="+izquierda+",top="+arriba+ ",fullscreen=no,toolbar=no,status=no,menubar=no,scrollbars="+show_scrolls+",resizable=yes,directories=no,"+ "location=no"); ventana.document.open(); ventana.document.write(''); ventana.document.write(''); ventana.document.write(''); ventana.document.close(); ventana.focus(); }