function ShowHide(id1)
{
	if (id1 != '') expMenu(id1);
}

function expMenu(id)
{
	var itm = null;
	if (document.getElementById)
	{
		itm = document.getElementById(id);
	}
	else	if (document.all)
		{
			itm = document.all[id];
	  	}
		else	if (document.layers)
			{
				itm = document.layers[id];
	  		}
	
	if (!itm)
	{
	}
	else	if (itm.style)
		{
			if (itm.style.display == "none")
			{
				itm.style.display = "";
			}
			else
			{
				itm.style.display = "none";
			}
		}
	  	else
		{
			itm.visibility = "show";
		}
}