function Browser(id) {
	this.el = document.getElementById(id);
	this.terms = this.el.getElementsByTagName('dt');
	for (var i = 0; i < this.terms.length; i++) {
		addEvent(this.terms[i], 'click', function(evt) {
			// TODO: assign new class to term
			var def = nextEl(this);

			evt.stopPropagation();
		});
		this.terms[i].className += ' clickable';
	}




}