Exnironment Detection

//-- Assign initial values for browser settings to global variables. function getBrowserEnv(){ //-- First get some basic information about the client's browser - store the results. var UNKNOWN = "Unknown"; var myheight = UNKNOWN; var mywidth = UNKNOWN; var bufferdepth = UNKNOWN; var colordepth = UNKNOWN; var javaOK = UNKNOWN; var cookiesOK = UNKNOWN; var minorVers = UNKNOWN; var cpu = UNKNOWN; var browsLang = UNKNOWN; var agt = UNKNOWN; var yourOS= UNKNOWN; var oldMessage1=""; var oldMessage2=""; var myMessage="This web site is best viewed using Microsoft Internet Explorer V4.0 or later, with a screen resolution of 1024x768 or greater, with a colour depth of 16 bits or more."; var browserName = navigator.appName ; var browserVersion = navigator.appVersion ; var browserVersionNum = parseFloat(browserVersion) ; agt = navigator.userAgent ; //-- Get platform information and store in yourOS. if ((agt.indexOf("Win95")!=-1)||(agt.indexOf("Windows 95")!=-1)) {yourOS='Windows 95';} if ((agt.indexOf("Win98")!=-1)||(agt.indexOf("Windows 98")!=-1)) {yourOS='Windows 98';} if ((agt.indexOf("WinNT")!=-1)||(agt.indexOf("Windows NT")!=-1)) {yourOS='Windows NT';} if ((agt.indexOf("Win16")!=-1)||(agt.indexOf("Windows 3.1")!=-1)) {yourOS='Windows 3.x';} if (agt.indexOf("Macintosh")!=-1) { if (agt.indexOf("PC)")!=-1) {yourOS='Mac PPC';} else {yourOS='Mac 68K';} } if (agt.indexOf("SunOS")!=-1) {yourOS='Unix Sun';} if (agt.indexOf("IRIX")!=-1) {yourOS='Unix SGI';} if (agt.indexOf("HP-UX")!=-1) {yourOS='Unix HP';} if (agt.indexOf("AIX")!=-1) {yourOS='Unix IBM'; } //-- If browser is version 4 or better we can take a deeper look. if (browserVersionNum >= 4) { if (browserName == "Microsoft Internet Explorer") {colordepth=screen.colorDepth + " bits";} if (browserName == "Netscape") {colordepth=screen.pixelDepth + " bits";} myheight=screen.height; mywidth=screen.width; if (navigator.javaEnabled()==true){javaOK="Yes";}else{javaOK="No";} //-- cookieEnabled only works in MSIE. if (browserName=="Microsoft Internet Explorer") { if (navigator.cookieEnabled==true) { cookiesOK="Yes"; browsLang = navigator.browserLanguage ; } else{ cookiesOK="No"; browsLang = navigator.Language ; } } //-- These all end up as unknowns in Navigator 4.05. minorVers = navigator.appMinorVersion; cpu = navigator.cpuClass; browsLang = navigator.browserLanguage ; } else { oldMessage1 = "Your browser is very old so you will not be able to enjoy many of the new features on the web." ; oldMessage2 = "You should upgrade to a later version if you can."; } //-- Now we can write global variables into the screen. document.write(" Exnironment Detection"); document.write(""); document.write(""); document.write(""); document.write(""); document.write(""); document.write("

"); document.write("

Your Browser Environment

"); document.write("

"); document.write("Browser Details"); document.write("

"); document.write("

"); document.write("Your browser is "+ browserName +"
"); document.write("Your browser version is "+ browserVersionNum +"
"); document.write("Your computer platform is "+ yourOS +"
"); document.write("Java Enabled? "+ javaOK + "
"); document.write("Cookies Enabled? "+ cookiesOK + "
"); document.write("Browser language: "+ browsLang + "
") document.write("Browser minor version: "+ minorVers + "

"); document.write("Screen resolution: "+mywidth+" x "+myheight+ "
"); document.write("Colour depth: " + colordepth + "
"); document.write("CPU: " + cpu + "

"); document.write("" + oldMessage1 + "

"); document.write("" + oldMessage2 + "

"); document.write("" + myMessage + "

"); document.write("

"); document.write(""); }