function switchclass(id) {
	if(document.getElementById(id)) {
		alldiv = document.getElementsByTagName('div');
		for (var i=0; i<alldiv.length; i++) {if(alldiv[i].className=="si") alldiv[i].className="no";}
		document.getElementById(id).className="si";
	}
}
function deseleccionar() {
	var ul = document.getElementsByTagName("li");
	for (var i=0; i<ul.length; i++) {if ( ul.item(i) != null ) ul.item(i).className = "pasive";}
}