function openWindow(name,width,height) {
 iMyWidth = (window.screen.width/2) - (width)
 iMyHeight = (window.screen.height/2) - (height)
 fokus = 'f = window.open("","' + name + '", "width=' + width + ',height=' + height + ',resizable=no,left=' + iMyWidth + ',top=' + iMyHeight + ',screenX=' + iMyWidth + ',screenY=' + iMyHeight + ',scrollbars=1")';
 //alert(fokus);
 eval(fokus);
 f.fokus();
}