function openimg(imgName) {
	var darken_div=document.getElementById("darken");
//	var shadow_div=document.getElementById("shadow");
	var pip_div=document.getElementById("pip");
	
	pip_div.innerHTML='<a href="#" onclick="closeImg()"><img src="' + imgName + '" class="pip" class="pip"></a>';
	darken_div.style.visibility="visible";
//	shadow_div.style.visibility="visible";
	pip_div.style.visibility="visible";
//	shadow_div.style.width=pip_div.style.offsetWidth;
	
//	<img src="pip-images/image.jpg" class="pip">	
}

function closeImg() {
	var darken_div=document.getElementById("darken");
//	var shadow_div=document.getElementById("shadow");
	var pip_div=document.getElementById("pip");
	
	darken_div.style.visibility="hidden";
//	shadow_div.style.visibility="hidden";
	pip_div.style.visibility="hidden";
}