tatus.textContent = '\xa0';
		canvas.title = '';
		canvas.style.cursor = '';
		canvas.onclick = '';
	}

	document.getElementById('reverse').onclick = function() {
		reverse = !reverse;
		render();
	}

	document.getElementById('search').onclick = function() {
		search(true);
	}

	document.getElementById('reset').onclick = function() {
		search(false);
	}

	window.onkeydown = function() {
		if (event.ctrlKey && event.keyCode === 70) {
			event.preventDefault();
			search(true);
		} else if (event.keyCode === 