function openImage(html_file,width,height,scrollbars) 
{ 
popupWin = window.open('./Bilder/' + html_file, 'Bild', 'width='+width+',height='+height+',scrollbars=' + scrollbars); popupWin.focus(); 
}  

//Standardpopupöffner
//newwindow=false;
function fenster(url,breite,hoehe)
{
//if(newwindow&&newwindow.closed==false)
//newwindow.close();
var l = (screen.availWidth - breite) / 2;
var t = (screen.availHeight - hoehe) / 2;
var newwindow = window.open(url,"newwindow","width="+breite+",height="+hoehe+",left="+l+",top="+t+",toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0;");
//newwindow.focus();
}