function showMenu(which)
{
	document.getElementById("menu_" + which).style.display = "block";
	document.getElementById("menu_" + which + "_btn").src = "images/design/minus.gif";
}
function hideMenu(which)
{
	document.getElementById("menu_" + which).style.display = "none";
	document.getElementById("menu_" + which + "_btn").src = "images/design/plus.gif";

}
function toggleMenu(which)
{
	if (document.getElementById("menu_" + which).style.display == "block")
	{
		hideMenu(which);
	}
	else
	{
		showMenu(which);
	}
}