function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
		}
	else {
		window.onload = function() {
			oldonload();
			func();
			}
		}
	}

var popup = {
	window : null,

	click : function(event) {
		if (popup.window) {
			popup.window.close()
			}

		popup.window = window.open(popup.href(this.href), "illustration", "resizable=yes, scrollbars=yes, status=yes, height=200, width=400");
		popup.window.focus();

		return false;
		},

	href : function(file) {
		return "/popup/index.php?file="+file;
		},

	init : function(id, width, height) {
		var re = new RegExp(/\bpopup\b/);

		var links = document.all || document.getElementsByTagName("*");
		for (var i = links.length - 1; i >= 0; i--) {
			if (links[i].href && re.exec(links[i].className)) {
				links[i].onclick = popup.click;
				}
			}
		},

	resize : function(image_height, image_width) {
		document.getElementById("loading").id = "";

		if (window.innerHeight) {
			var window_height = window.innerHeight;
			}
		else {
			var window_height = document.documentElement.clientHeight;
			}
		var window_width = document.body.clientWidth;

		var adj_h = image_height - window_height;
		var adj_w = image_width - window_width

		if (window.outerHeight) {
			if (window.outerHeight + adj_h > screen.availHeight) {
				adj_h = screen.availHeight - window.outerHeight;
				}
			if (window.outerWidth + adj_w > screen.availWidth) {
				adj_w = screen.availWidth - window.outerWidth;
				}
			}
		window.resizeBy(adj_w, adj_h);

		adj_h = document.body.clientHeight - document.documentElement.clientHeight;
		adj_w = image_width - document.body.clientWidth;
		window.resizeBy(adj_w, adj_h);
		}
	}

addLoadEvent(popup.init);