descWrapper = "desc-wrapper";

function showDesc(x) {
	hideAllDesc();
	document.getElementById(descWrapper).getElementsByTagName('div')[x].style.display = "block";
}

function resetDesc() {
	hideAllDesc();
	showDesc(0);
}

function hideAllDesc() {
	var textboxes = getAllDesc();
	for(i=0; i < textboxes.length; i++) {
		textboxes[i].style.display = "none";
	}
}

function getAllDesc() {
	return document.getElementById(descWrapper).getElementsByTagName('div');
}