function toggleCollapsibleParagraph(id) {
	var paragraph = document.getElementById(id);
	if (paragraph) {
		var currentClass = paragraph.getAttribute("class");
		if (!currentClass) {
			currentClass = paragraph.getAttribute("className");
		}
		if (currentClass == "closed") {
			paragraph.setAttribute("class", "open"); 
			paragraph.setAttribute("className", "open");
		} else {
			paragraph.setAttribute("class", "closed"); 
			paragraph.setAttribute("className", "closed");
		}
	}
}