/********************************************************************
layers.js - layer control library
*********************************************************************
author:		Phil Ewington (phil.ewington@i-model.co.uk)
date:		23/04/2007
history:	n/a
********************************************************************/

function showLayer(layer, style)
{
	o = document.getElementById(layer);
	if (arguments.length > 1)
	{
		o.style.display = style == 'block' ? 'block' : 'inline';
	}
	else
	{
		o.style.display = 'block';
	}
}

function hideLayer(layer)
{
	o = document.getElementById(layer);
	o.style.display = 'none';
}