function pic_open(src,Xres,Yres)
{	
// definiton der werte des Fensters
	var wf = "";	
	wf = wf + "width=" + (Xres + 20);
	wf = wf + ",height=" + (Yres + 30);
	wf = wf + ",resizable=no";
	wf = wf + ",scrollbars=no";
	wf = wf + ",menubar=no";
	wf = wf + ",toolbar=no";
	wf = wf + ",directories=no";
	wf = wf + ",location=no";
	wf = wf + ",status=no";	

// šffnen des Fensters
	if ((typeof(pic_win)=='object') && (window.navigator.appName != 'Netscape'))
		{ pic_win.close(); }
	pic_win=window.open(src,"pic_win",wf);
	pic_win.focus();
	//pic_win.moveTo(20,20);
}