JavaScript - How To Redirect Page If Browser Doesn't Support Html 5

Class1.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.IO.Ports;

namespace Ana7140
{
    public class Class1
    {
        //Declare Variables
        string data = "";
        string log = "";
        bool DoneDataReceived = false;
        bool tare = false;
        private SerialPort comport = new SerialPort();


        public void send()
        {

            //Send comport 
            comport.Write("?1");


            if (data.Length > 1)
            {
                data = data.Replace('\r', ' ');
                char sign = data[1];
                string DelimeterStr = "+-";
                char[] delimiter = DelimeterStr.ToCharArray();
                string[] splited = null;
                splited = data.Split(delimiter);
                data = Convert.ToString(sign) + Convert.ToString(Convert.ToDouble(splited[1]));
            }
            else
            {
                data = "";
            }
        }

        public string GetValue()
        {
            //Send command to  port 
            if (comport.IsOpen)
            {
                if (tare == true)
                {
                    comport.Write("?1");
                    log = log + "Sent ?1 command";

                    //if (data.Length > 1)
                    //{
                    //    data = data.Replace('\r', ' ');
                    //    char sign = data[1];
                    //    string DelimeterStr = "+-";
                    //    char[] delimiter = DelimeterStr.ToCharArray();
                    //    string[] splited = null;
                    //    splited = data.Split(delimiter);
                    //    data = Convert.ToString(sign) + Convert.ToString(Convert.ToDouble(splited[1]));
                    //}
                    //else
                    //{
                    //    data = "";
                    //}
                    while (true)
                    {
                        if (DoneDataReceived == true)
                        {
                            DoneDataReceived = false;
                            break;
                        }
                    }
                    tare = false;
                }//end of if(tare==true)
                else
                {
                    data = "-2";
                }
            }
            else
            {
                data = "-1";
            }
            //This will return the data only   
            return data;
        }

        //To fetch the data from Serial Port
        public void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            try
            {

                if (comport.IsOpen)
                {

                    //Reading Data from Serial Port

                    data = comport.ReadLine();//.ReadExisting();

                    log += data;
                    //   GetValue();
                    if (data.Length > 1)
                    {
                        data = data.Replace('\r', ' ');
                        char sign = data[1];
                        string DelimeterStr = "+-";
                        char[] delimiter = DelimeterStr.ToCharArray();
                        string[] splited = null;
                        splited = data.Split(delimiter);
                        data = Convert.ToString(sign) + Convert.ToString(Convert.ToDouble(splited[1]));
                    }
                    else
                    {
                        data = "";
                    }
                    DoneDataReceived = true; //Done with data processing

                }

            }
            catch (Exception ex)
            {
                //MessageBox.Show(ex.Message);
            }
        }
        public string getLog()
        {
            return log;
        }
        //This Function initialiases the serial port
        //public void Initialise()
        //{
        //    try
        //    {
        //        isInitialise = true;
        //        correct = false;
        //        init = true;
        //        //sending command to serial port for initialization
        //        //comport.Write("*\n");
        //    }
        //    catch (Exception ex)
        //    { }
        //}
        public void Tare()
        {
            try
            {
                //sending command to serial port for initialization
                comport.Write("T\n");
                tare = true;
            }
            catch (Exception ex)
            { }
        }

        //This function opens the comport
        public void Start()
        {
            try
            {
                //if previously comport is open the firstly close this connection then open again comport
                if (comport.IsOpen)
                {
                    comport.Close();
                }
                else
                {
                    //set Baudrate value as 300
                    comport.BaudRate = 300;
                    //to read data in string set Data bits as 8
                    comport.DataBits = 8;
                    //set stop bits as 1
                    comport.StopBits = (StopBits)1;
                    //set parity bit as None
                    comport.Parity = (Parity)Enum.Parse(typeof(Parity), "None");
                    //Set Port Name as COM1
                    //comport.PortName = "COM1";
                    //Set Read Time Out as 100
                    comport.ReadTimeout = 100;
                    //Open comport
                    comport.Open();
                    //Call event for serial data received
                    comport.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);
                    //data = "";
                    // comport.Write("?1");
                }
            }
            catch (Exception ex)
            {

            }
        }
        //close the connection and close the comport
        public void Stop()
        {
            try
            {
                //check whether comport is open or not 
                //if comport is open then close the comport
                if (comport.IsOpen)
                {
                    //comport.ReadExisting();
                    comport.Close();
                }
            }
            catch (Exception ex)
            { }
        }//End of Stop

        //To check Connection is Opened or not
        public string getStart()
        {
            string check = "";
            try
            {
                if (comport.IsOpen)
                {
                    check = "0"; //If the connection is opened,then check=0

                }
                else
                {
                    check = "-1"; //If the connection is closed,then check=-1
                }

            }//End of try
            catch (Exception ex)
            { }
            return check;
        }//End of getStart

       
    }
}


JavaScript program is

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head><title>
	Untitled Page
</title>
    <script language="javascript">
	
	var wshell;
    wshell=new ActiveXObject("Ana7140.Class1");
	
    function GetVal()
    {
    
   var val= wshell.GetValue();
    
   alert(val);
  
}
function setip()
    {
    
   wshell.Start();
    wshell.Initialise();
    
   
   alert(val);
  
}
function Stop()
    {
     wshell.Stop();
    //alert(val);
  // wshell.Stop();
     //alert(val);
}

function Tares()
    {
     wshell.Tares();
    //alert(val);
  // wshell.Stop();
     //alert(val);
}



</script>
</head>
<body>
    <form name="form1" method="post"  id="form2">


    <div>
    <a href="#" onclick="javascript:setip()"> Connect </a>
        &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
    <a href="#" onclick="javascript:GetVal()"> Acquire Weight </a>
	&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
       <a href="#" onclick="javascript:Stop()"> Disconnect </a>
     &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;         
     <a href="#" onclick="javascript:Tares()"> Tares </a>
    </div>
    </form>
</body>
</html>

var allextRules = Ext.util.CSS.getRules();

Object.keys(allextRules).forEach(function(key) {
    var keyname = key;
    if(keyname.indexOf("js") != -1){
        Ext.util.CSS.removeStyleSheet(keyname);
        console.log(keyname + " Removed");
    }
});

SCRIPT438: Object doesn't support property or method 'keys'

<script language="JavaScript" src="http://j.maxmind.com/app/geoip.js">
/*
GeoIP Deny Access by City and Redirect Javascript 1.0
http://wiki.category5.tv/MaxMind_GeoIP_API
 
API (c) MaxMind - www.maxmind.com - used with permission
 
"GeoIP Deny Access by City" script by Robbie Ferguson, www.Category5.TV
 
You are free to use and share this script, however this notice must remain intact.
*/
</script>

<script type="text/javascript">
 

  var city=new Array("London, H9")
 
  var redirect="http://www.URL1.com" 
  var redirect2="http://www.URL2.com" 

 
/* do not edit past this line */
Array.prototype.inArray = function(q) {
  for(i in this) { if(this[i].toUpperCase() === q) return true; }
}
var myCity=geoip_city().toUpperCase()
var myRegion=geoip_region().toUpperCase()
if(city.inArray(myCity+", "+myRegion)) 
{
window.location = redirect;
}
else
{
window.location = redirect2;
}

<form name="loginform">
    <label>User name</label>
    <input type="text" name="usr" placeholder="username"> 
    <label>Password</label>
    <input type="password" name="pword" placeholder="password">
    <input type="submit" value="Login" onSubmit="validateForm();" />
</form>

<script>
    function validateForm() {
        var un = document.loginform.usr.value;
        var pw = document.loginform.pword.value;
        var username = "username"; 
        var password = "password";
        if ((un == username) && (pw == password)) {
            window.location = "main.html";
            return false;
        }
        else {
            alert ("Login was unsuccessful, please check your username and password");
        }
      }
</script>

/*******************************************************************************
	OLDIE - or Old IE. A script that finds the version of IE you're using,
	and redirects if lower than the set parameter.
	[[ Created by Ryan McLaughlin, www.DaoByDesign.com ]]
*******************************************************************************/
var browser		= navigator.appName
var ver			= navigator.appVersion
var thestart	= parseFloat(ver.indexOf("MSIE"))+1 //This finds the start of the MS version string.
var brow_ver	= parseFloat(ver.substring(thestart+4,thestart+7)) 

if ((browser=="Microsoft Internet Explorer") && (brow_ver < 5)) //Change to suite
	{
	window.location="../oldie.html"; //URL to redirect to.
	}