function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function AbreAyuda() {
nueva=window.open('ayuda.html','ventana', 'width=400,height=300,left=5,top=5,resizable=yes,scrollbars=yes');
nueva.focus();
}

function AbreAyudaPago(id) {
nueva=window.open('ayuda.html#' + id,'ventana', 'width=400,height=300,left=5,top=5,resizable=yes,scrollbars=yes');
nueva.focus();
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}


// Imagenes home
var imagenumber = 5;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "/img/cabecera_array/cabecera_1.gif"
images[2] = "/img/cabecera_array/cabecera_2.gif"
images[3] = "/img/cabecera_array/cabecera_3.gif"
images[4] = "/img/cabecera_array/cabecera_4.gif"
images[5] = "/img/cabecera_array/cabecera_5.gif"
var image1 = images[rand1]