//--------------------------------------------------------------------------------------------------------------------
	// dynamically expand and collapse data
	// 	param - 
	//		id = name of element to expand or collapse
	//--------------------------------------------------------------------------------------------------------------------
	
	function expandCollapse(id)
	{
		if(!document.all&&!document.getElementById)
			return
		if (!document.all&&document.getElementById)
			ns6_index=1

		var source=document.all[id]
		var source2=document.getElementById&&!document.all? source.parentNode.childNodes:source.parentElement.all

		if (source.style.display=="none")
		{
			// display text
			source2[0].src=""
			source.style.display=''
			source.style.position='relative'
			source.style.left='10px'
		}
		else if (source.style.display=="")
		{
			// do not display text
			source2[0].src="images/figures/bullet_arrow_blue.gif"
			source.style.display="none"
		}
	}