function switchTo(item) {
	var possibles = document.getElementsByTagName('div');

	for (var i=0;i<possibles.length;i++) {
		if (possibles[i].className.match("hideable")) {
			possibles[i].style.display="none";
		}
	}

	document.getElementById(item).style.display = 'block';
	return false;
}