var popup_window;

function getbase() {
        var bs = document.getElementsByTagName("base");
        for (var i = 0; i<bs.length; i++) {
		if (bs[i].href) return bs[i].href;
        }
        return "";
}

function popup_update(url) {
	url = getbase() + url;
	if (popup_window && !popup_window.closed) {
		popup_window.location.href = url;
	} else {
		popup_window = window.open(url, "marquardtkeramik_popup", "innerWidth=500,innerHeight=660,width=510,height=680,dependent=yes,location=no,menubar=no,status=no,toolbar=no,scrollbars=no");
	}
	popup_window.focus();
}

function popup(url) {
	url = getbase() + url;
	if (popup_window && !popup_window.closed) {
		popup_window.close();
	}
	popup_window = window.open(url, "marquardtkeramik_popup", "innerWidth=500,innerHeight=660,width=510,height=680,dependent=yes,location=no,menubar=no,status=no,toolbar=no,scrollbars=no");
	popup_window.focus();
}