{	


	imgcloseup0 = new Image();
  	imgcloseup0.src = "../images/close0.gif";
  	imgcloseup1 = new Image();
  	imgcloseup1.src = "../images/close1.gif";

	imgclosedown0 = new Image();
  	imgclosedown0.src = "../images/close0.gif";
  	imgclosedown1 = new Image();
  	imgclosedown1.src = "../images/close1.gif";

	imgcerrar0 = new Image();
  	imgcerrar0.src = "../images/cerrar0.gif";
  	imgcerrar1 = new Image();
  	imgcerrar1.src = "../images/cerrar1.gif";

	imgup0 = new Image();
  	imgup0.src = "../images/up0.gif";
  	imgup1 = new Image();
  	imgup1.src = "../images/up1.gif";

	imgdown0 = new Image();
  	imgdown0.src = "../images/down0.gif";
  	imgdown1 = new Image();
  	imgdown1.src = "../images/down1.gif";

}

function CambiarImagen(imageId,imageNo)
{ 
  	document.images[imageId].src = eval(imageId + imageNo + ".src");
}

function ScrollMenu()
{
	document.all['tituloarbol'].style.top = document.body.scrollTop;
  	document.all['menuarbol'].style.top = document.body.scrollTop;
}

function ScrollTitulo()
{
  	document.all['tituloarbol'].style.top = document.body.scrollTop;
}