var win = null;

var h= 385;              //Höhe
var w = 640;            //Breite
var wint= 1;           //koordinate y
var winl= 1;          //koordinate x
var scroll= 'no';    //Scrollbar, yes oder no
var resize= 'no';   //Grösse veränderbar, yes oder no
var status= 'no';  //Statusleiste, yes oder no
function window_open(pfad) {




winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable='+resize+',status='+status;

win = window.open(pfad,"Popup", winprops);


if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }

}

function fenster_zu(){
                       if (win && win.open && !win.closed) win.close();
}