function expand(clickedItem)
{
	if ( clickedItem.className == "shown" )
	{
		clickedItem.className = "";
		clickedItem.parentNode.nextSibling.style.display = "none";
	}
	else
	{
		clickedItem.className = "shown";
		clickedItem.parentNode.nextSibling.style.display = "block";
	}
}