var InternetExplorer = navigator.appName.indexOf("Microsoft") != -1;
var popupscherm=0;

function popup_afbeelding(filename, fileid, width, height, scrollbars, resizable, menubar, toolbar, status, location) {
	if (popupscherm && ! popupscherm.closed)	popupscherm.close();
	if (!filename || filename=="")				filename="http://www.norit.com";
	if (!fileid || fileid=="")					fileid="norit";
	if (!width || width=="")					width="50";
	if (!height || height=="")					height="50";
	if (!scrollbars || scrollbars=="")			scrollbars="no";
	if (!resizable || resizable=="")			resizable="yes";
	if (!menubar || menubar=="")				menubar="no";
	if (!toolbar || toolbar=="")				toolbar="no";
	if (!status || status=="")					status="no";
	if (!location || location=="")				location="no";
	popupscherm=0;
	var args = "height=" + height + ", width=" + width + ", scrollbars=" + scrollbars + ", resizable=" + resizable +  ", menubar=" + menubar + ", toolbar=" +toolbar + ", status=" + status + " ,location=" + location;
	popupscherm = open(filename, fileid, args);
	if (!InternetExplorer) 						popupscherm.focus();
}