function broswerDetection(){
    var appName = navigator.appName;
    var appVersion = navigator.appVersion;
    var userAgent = navigator.userAgent;    

    var browserSupported = false;
    
    if(appName == "Netscape") {   // the browser could be a Netscape or Firefox
        if(userAgent.indexOf("Firefox") == -1){
            // the browser is Netscape, then we flag that the netscape not supported
                browserSupported = false;
        }
        else if((userAgent.indexOf("Navigator") != -1) && (userAgent.indexOf("Firefox") != -1) ){
            // the broswer is Netscape v9.0
                browserSupported = false;   
        }
        else{    // this is actually a Firefox browser
            var firefoxIndex = userAgent.indexOf("Firefox") + 8;
            if(parseInt(userAgent.charAt(firefoxIndex)) >= 1){
                browserSupported = true;
            }
        }   
    }
    else if(appName == "Microsoft Internet Explorer"){
        var version = 0.0;
        if(userAgent.indexOf("Opera") == -1){
        // Microsoft Internet Explorer
            
            if(appVersion.indexOf("MSIE") != -1){
                var temp = appVersion.split("MSIE");
                version = parseFloat(temp[1]);
            }
            
            if(version >= 6.0){
                browserSupported = true;
            }
        }
        else{
            // Opera broswer, flag the broswer not supported
            browserSupported = false;
        }
    }