/* FUNCION DESPLEGABLE */
	
function mostrar (eltd, laimg) {	
	if ( document.getElementById(eltd).style.display == "none" )
			{
				document.getElementById(eltd).style.display="block";
				document.getElementById(laimg).src = "./images/arrowdn.gif"
			}
			else
			{
				document.getElementById(eltd).style.display = "none";
				document.getElementById(laimg).src = "./images/bullet.gif"
			}	
}