function imgpopup(url, picture, width, height) {
	var popurl = url + "?img=" + picture + "&w=" + width + "&h=" + height;
	var hori = (screen.width - width) / 2;
	var vert = (screen.height - height) / 2;
	winpops=window.open(popurl,"","width=" + width + ",height=" + height + ",left=" + hori + ",top=" + vert + ",scrollbars=yes,")
}