var navName = navigator.appName;
var navVer = navigator.appVersion.charAt(0);
var navPlat = navigator.platform;
var l = 0;
var t = 0;
var w = screen.width;
var h = screen.height;
var targetUrl = 'delter.pl?width=' + w + '&height=' + h + '&browser=' 
                + navName + '&platform=' + navPlat;

if (navName == "Netscape") {
  if (navPlat != "Win32") {
    w -= 8;
    h -= 28;
    if (navPlat == "MacPPC") {
      h -= 18;
    }
  }
  var cfg = 'outerWidth='+w+',outerHeight='+h+
            ',left=0,top=0,status=1,toolbar=0,resizable=1';
} else {
  if (navPlat == "Win32") {
    w -= 8;
    h -= 77;
    var cfg = 'width='+w+',height='+h+',left=0,top=0,status=1';
  } else if (navPlat == "MacPPC") {
    if (navVer > 4) {
      l = 2;
      t = 16;
    }
    var cfg = 'width='+w+',height='+h+',left='+l+',top='+t+
              ',status=1,toolbar=0';
  } else {
    var cfg = 'width='+w+',height='+h+',left=0,top=0,status=1,toolbar=0';
  }
}

function launchSpawn() {
  spawn = window.open('blank.html', 'spawn', cfg);
  spawn.focus();
}