docH4s = document.getElementsByTagName('h4');
for (i=0; i<docH4s.length; i++) {
	if (docH4s[i].parentNode.className == 'question') {
		docH4s[i].onclick = function() {
//			alert('works');
			subDivs = this.parentNode.getElementsByTagName('div');
			for (i2=0; i2<subDivs.length; i2++) {
				if (subDivs[i2].className == 'answer') {
					subDiv = subDivs[i2];
				}
			}
			if (subDiv.style.display != 'block') {
				subDiv.style.display = 'block';
			} else {
				subDiv.style.display = 'none';
			}
		}
	}
}