function changepic(pic,clickelement)
	{
		document.getElementById('mainpic').src = pic;
		document.getElementById('img1').style.opacity = 0.5;
		document.getElementById('img1').style.filter = 'alpha(opacity=' + 50 + ')';
		document.getElementById('img2').style.opacity = 0.5;
		document.getElementById('img2').style.filter = 'alpha(opacity=' + 50 + ')';
		document.getElementById('img3').style.opacity = 0.5;
		document.getElementById('img3').style.filter = 'alpha(opacity=' + 50 + ')';
		document.getElementById('img4').style.opacity = 0.5;
		document.getElementById('img4').style.filter = 'alpha(opacity=' + 50 + ')';
		document.getElementById('img5').style.opacity = 0.5;
		document.getElementById('img5').style.filter = 'alpha(opacity=' + 50 + ')';
		document.getElementById(clickelement).style.opacity = 1;
		document.getElementById(clickelement).style.filter = 'alpha(opacity=' + 100 + ')';
	}
	
	function showInfo(id)
	{
		hideInfo()
		document.getElementById(id).style.display = 'block'
		if(id == "productInfo")
		{
			document.getElementById("producttab").className = "selectedtab";
			document.getElementById("layertab").className = "notselected";
			document.getElementById("ultratab").className = "notselected";
		}
		if(id == "layerInfo")
		{
			document.getElementById("producttab").className = "notselected";
			document.getElementById("layertab").className = "selectedtab";
			document.getElementById("ultratab").className = "notselected";
		}
		if(id == "ultraInfo")
		{
			document.getElementById("producttab").className = "notselected";
			document.getElementById("layertab").className = "notselected";
			document.getElementById("ultratab").className = "selectedtab";
		}		
	}
	function hideInfo()
	{
		document.getElementById('productInfo').style.display = 'none';
		document.getElementById('layerInfo').style.display = 'none';
		document.getElementById('ultraInfo').style.display = 'none';		
	}