function showExp(nodeID, nodeCount, nodePosition)
{
	for (i = 1; i <= nodeCount; i++)
	{
		if (i == nodePosition)
			show(nodeID + i);
		else
			hide(nodeID + i);	
	}    
}	

function show(displayItem)
{
    var dItem = document.getElementById(displayItem);
    dItem.style.display = 'inline';
}

function hide(displayItem)
{
    var dItem = document.getElementById(displayItem);
    dItem.style.display = 'none';
}