var isNav4, isIE4 var output = "" if (parseInt(navigator.appVersion) >= 4) { isNav4 = (navigator.appName == "Netscape") isIE4 = (navigator.appName.indexOf("Microsoft") != -1) } if (isIE4){ output += "" } else if(isNav4){ output += ""} else { output += "Europe-Envirocom TEST"} document.write(output)