function init()
{
	var toggle_c = document.getElementById('paintings');
	toggle_c.onclick = function() { toggle(1); return false; };

	var toggle_a = document.getElementById('about');
	toggle_a.onclick = function() { toggle(2); return false; };
}
function toggle(n)
{
	var div_n = document.getElementById('toggle' + n);
	div_n.style.display = (div_n.style.display == 'none' ? 'block' : 'none');

	var div_not_n = document.getElementById('toggle' + (n == 1 ? 2 : 1));
	div_not_n.style.display = 'none';
}
window.onload = function() { init(); }