function changepic(pic)
		{
			document.getElementById('mainpic').src = pic
		}

	function showInfo(id)
	{
		hideInfo()
		document.getElementById(id).style.display = 'block'		
	}
	function hideInfo()
	{
		document.getElementById('productInfo').style.display = 'none'
		document.getElementById('layerInfo').style.display = 'none'
		document.getElementById('ultraInfo').style.display = 'none'
	
		
	}