function openBigPic(filename) {
	var width = 820;
	var height = 620;

	var path = "./images/" + filename;

	var attrib = "resizable=no,toolbar=no,menubar=no,status=no,width=" + width + ",height=" + height;
	var picture = window.open(path, "bigPic", attrib);
	picture.focus();
}