function showPopupImage(link){	
	link = $(link)
	showOverlay({onclose: hidePopupImage})
	
	if(!$("popupimg")){
		$(document.body).insert(
			new Element("img", {id: "popupimg", style: "display: none;"})
		).insert(
			new Element("a", {id: "popupimgclose", href: "javascript:void(0)", title: "Close"})
		)
		$("popupimgclose").observe("click", hidePopupImage)
	}
	
	var preload = new Image();
	preload.onload = function(){
		stopOverlayLoading();
		$("popupimg").src = link.readAttribute("href")
		$("popupimg").appear();
		$("popupimgclose").appear();
	}
	preload.src = link.readAttribute("href");
	
	
	return false;
}
function hidePopupImage(){
	hideOverlay();
	$("popupimg").fade({duration: 0.5})
	$("popupimgclose").fade({duration: 0.5})
}