function expand(){
	contenido.document.getElementById(expand.arguments[0]).style.display = "block";
}
function collapse(){
			contenido.document.getElementById(collapse.arguments[0]).style.display = "none";
		}
		
function Ventana(ventana,alto,ancho) 
{
	stats = 'toolbar=no,location=no,directories=no,status=no,';
	stats += 'menubar=no,scrollbars=yes,resizable=yes,';
	stats += 'height='+(alto)+',width='+(ancho);
	PorBox = window.open(ventana,"ventana",stats);
	return;
}


function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
var actual;
actual = "";
function mostrarindice(capa){
	if ((actual !="")&&(actual!=capa)){
		document.getElementById(actual).style.display = "none";
	}
	actual = capa;
	estado = document.getElementById(capa).style.display;

	if ((estado=="none")||(estado=="")){
		document.getElementById(capa).style.display = "block";
	}else{
		document.getElementById(capa).style.display = "none";
	}
}