function show(num)
{
	if (document.getElementById("questions"))
	{
		if (num == "all" || num == "none") {
			theQuestions = document.getElementById("questions");
			if (theQuestions.hasChildNodes())
			{
				var question = theQuestions.childNodes;
				for (j = 0, i = 0; i < question.length; i++)
				{
					if (question[i].tagName == "DIV")
					{
						j++;
						theDisplay = num == "all" ? "block" : "none";
						theIcon = num == "all" ? "" : "closed";
						document.getElementById("question" + j).className = theIcon;
						document.getElementById("answer" + j).style.display = theDisplay;
					}
				}
			}
		} else if (document.getElementById("answer" + num).style.display == "none") {
			document.getElementById("question" + num).className = "";
			document.getElementById("answer" + num).style.display = "block";
		} else {
			document.getElementById("question" + num).className = "closed";
			document.getElementById("answer" + num).style.display = "none";
		}
	}
}