function openMaximizedWindow(URL) {
    // cerramos la pantalla de inicio
    // self.close();
    // abrimos el sitio de File
    var ancho = screen.availWidth - 10;
    var alto = screen.availHeight - 60;
    opt = "top=0,left=0,width=" + ancho + ",height=" + alto + ",toolbar=no,scrollbars=yes,status=yes,directories=no,menubar=no,resizable=yes";
    window.open(URL, '_blank', opt, true);
}
//bien
function openSmallWindow(URL) {
    // cerramos la pantalla de inicio
    window.opener = self;
    self.window.close();
    self.close();
    // abrimos el sitio de File
    var ancho = 300;
    var alto = 620;
    opt = "width=" + ancho + ",height=" + alto + ",toolbar=no,scrollbars=no,status=yes,directories=no,menubar=no,resizable=yes";
    window.moveTo(200, 0);
    window.open(URL, '_blank', opt, true); //.focus();

}
function openLoginWindow(URL) {
    // cerramos la pantalla de inicio

    self.close();
    // abrimos el sitio de File
    var ancho = 300;
    var alto = 750;
    opt = "top=0,left=0,width=" + ancho + ",height=" + alto + ",toolbar=no,scrollbars=yes,status=yes,directories=no,menubar=no,resizable=yes";
    window.open(URL, '_blank', opt, true); //.focus();
}

function openWindow(URL) {
    //window.opener = self;
    //self.window.close();
    //self.close();
    var ancho = 482;
    var alto = 321;
    opt = "width=" + ancho + ",height=" + alto + ",toolbar=no,scrollbars=yes,status=yes,directories=no,menubar=no,resizable=yes";
    //opt = "toolbar=no,scrollbars=no,status=yes,directories=no,menubar=no,resizable=yes";
    //window.moveTo(200, 0);
    window.open(URL, '_blank', opt, true);
}

function openNewWindow(URL) {

   // window.open(URL, null, "height=200,width=400,status=yes,toolbar=no,menubar=no,location=no");

    opt = "toolbar = no, scrollbars = yes, status = yes, directories = no, menubar = no, resizable = yes";
    window.open(URL, '_blank', opt, true);
}