IsSelected = 1;
function hideshow(which)
{
	if (which.style.display=="")	
		which.style.display="none"
	else	
		which.style.display=""
}

function SelectedDiv(f)	
{
	if (f != IsSelected)
	{
		hideshow(document.getElementById(f));
		hideshow(document.getElementById(IsSelected));
		IsSelected = f;
	}	
}