// JScript source code
function respuesta(e)
{
    var el = (navigator.appName == "Microsoft Internet Explorer") ? event.srcElement : e.target;
	// bug de safari
	if (el.nodeType != 1)
		el = el.parentNode;
		
	var li = el.parentNode;
    if (li.tagName == "LI" && el.tagName == "A")
    {
        var div = li.getElementsByTagName("DIV")[0];
        
        if (div.style.display == "block")
        {
            div.style.display = "none";
            li.style.listStyleImage = "url(images/flecha.gif)";
        }
        else
        {
            div.style.display = "block";
            li.style.listStyleImage = "url(images/flechab.gif)";
        }
    }
    return;
}