var curDiv;

curDiv = null;

function showDiv(id)
{
	var newDiv;
	newDiv = document.getElementById(id);

	if (newDiv != curDiv)
	{
		newDiv.style.display = 'block';
		newDiv.style.visibility = 'visible';
		
		if (curDiv)
		{
			curDiv.style.display = 'none';
			curDiv.style.visibility = 'hidden';			
		}
		curDiv = newDiv;
	}

	return false;
}