function showBlock(id)
{
	var obj = document.getElementById(id);
	
	if(obj)
	{
		var parent = obj.parentNode;
		var children = parent.childNodes;
		
		for(var i = 0; i < children.length; i++)
		{
			if(children[i].nodeName == 'DIV')
			{
				children[i].style.display = children[i] == obj
					? 'block'
					: 'none';
			}
		}
	}
}