function expandCollapse() {
	for (var i=0; i<expandCollapse.arguments.length; i++) {
		var element = document.getElementById(expandCollapse.arguments[i]);
		element.style.display = (element.style.display == "none") ? "block" : "none";
	}
}

function destino(){
	url = document.form_anno.anno.options[document.form_anno.anno.selectedIndex].value;
	if (url != " no") window.location = url;
}

var vent=0
function abrirPdf(string) {
	if (vent && navigator.appName=='Microsoft Internet Explorer') vent.close();
	Izda=0
	Arriba=0
	cadena='toolbar=no,location=no,status=no,menubar=no,resizable=no,scrollbars=no,maximize=1'
    vent=window.open(string,'_blank',cadena)
	vent.moveTo(Izda,Arriba)
	vent.focus()
 }