My jquery Not supported at Fire fox and google chrome ???

My jquery Not supported at Fire fox and google chrome ???

I am using Htm5 with Jquery But its support only Internet explorer 8.0 but its not support Google chrome and firefox browser ? Please Help me ..

<!DOCTYPE html>
<!--[if lt IE 7 ]> <html lang="en" class="ie6 ielt8"> <![endif]-->
<!--[if IE 7 ]>    <html lang="en" class="ie7 ielt8"> <![endif]-->
<!--[if IE 8 ]>    <html lang="en" class="ie8"> <![endif]-->
<!--[if (gte IE 9)|!(IE)]><!--> <html lang="en"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<title>Login</title>
    <!--<link href="style.css" rel="stylesheet" type="text/css" />-->
   
    <!--<script src="js/jquery.js" type="text/javascript"></script>-->
    <script src="js/JSon.js" type="text/javascript"></script>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
   
     <script type="text/javascript">

         var Type;
         var Url;
         var Data;
         var ContentType;
         var DataType;
         var ProcessData;
         var method;
         function CallService() {
    
        
             $.ajax({
                 type: Type, //GET or POST or PUT or DELETE verb
                 url: Url, // Location of the service
                 data: Data, //Data sent to server
                 contentType: ContentType, // content type sent to server
                 dataType: DataType, //Expected data format from server
                 processdata: ProcessData, //True or False
                 success: function(msg) {//On Successfull service call
                     ServiceSucceeded(msg);
                 },
                 error: ServiceFailed// When Service call fails
             });
         }

         function ServiceFailed(result) {
             alert('Service call failed: ' + result.status + '' + result.statusText);
             Type = null; Url = null; Data = null; ContentType = null; DataType = null; ProcessData = null;
         }

         function GetData() {
             Type = "GET";
             Url = "http://localhost:4845/Service1.svc/Getdata/1";
             ContentType = "application/json; charset=utf-8";
             DataType = "json"; ProcessData = false;
             method = "GetData";
             CallService();
         }
function UserValidation() {

            var username=document.forms[0]["username"].value;
             var pwd=document.forms[0]["password"].value;
             Type = "POST";
             Url = "Service1.svc/Uservalidation";
             Data = '{"username": "' + username + '","password": "' + pwd + '"}';
             ContentType = "application/json; charset=utf-8";
             DataType = "json"; ProcessData = false;
             method = "UserValidation";
             CallService();


         }
function InsertData() {

             Type = "POST";
             Url = "Service.svc/InsertData";
             Data = '{}';
            // Data = '{"Address":"BANGALORE","FirstName":"JANAGAN","Pax":1,"Rate":100,"ResNo":87,"Roomtype":"DELUX"}';
             ContentType = "application/json; charset=utf-8";
             DataType = "json"; ProcessData = false;
             method = "InsertData";
             CallService();
         }
         function ModifyData() {
             Type = "PUT";
             Url = "Service.svc/ModifyData";
             Data = '{}';
            // Data = '{"Address":"BANGALORE","FirstName":"JANAGAN","Pax":1,"Rate":100,"ResNo":87,"Roomtype":"DELUX"}';
             ContentType = "application/json; charset=utf-8";
             DataType = "json"; ProcessData = false;
             method = "ModifyData";
             CallService();
         }
         function DeleteData() {
             Type = "DELETE";
             Url = "Service.svc/DeleteData";
             Data = '{}';
            // Data = '{"Address":"BANGALORE","FirstName":"JANAGAN","Pax":1,"Rate":100,"ResNo":87,"Roomtype":"DELUX"}';
             ContentType = "application/json; charset=utf-8";
             DataType = "json"; ProcessData = false;
             method = "DeleteData";
             CallService();
         }
        
         function ServiceSucceeded(result) {
             if (DataType == "json") {
             var x;
                var string =result.status;
                if(string == "Success")
                {
                    alert(string);
                    x=true;
                  return x;
                }
                else
                {
                alert("hi");
                 x=false;
                return x;
                }
                   //  alert(string);
          
             }
               return x;
         }

         function ServiceFailed(xhr) {
             alert(xhr.responseText);
             if (xhr.responseText) {
                 var err = xhr.responseText;
                 if (err)
                     error(err);
                 else
                     error({ Message: "Unknown server error." })
             }
             return;
         }

         $(document).ready(
         function() {
         $("#Login").click(function(){
   UserValidation();
//   alert("HELLO");
  
  });
       }
         );
       
    </script>

</head>
<body>
<div class="container">
    <section id="content">
        <form action="Reservation.htm" id="reservation" onsubmit="return ServiceSucceeded" > <!--Reservation.htm-->
            <h1>Login Form</h1>
            <div>
                <input type="text" placeholder="Username" required="" id="username" />
            </div>
            <div>
                <input type="password" placeholder="Password" required="" id="password" />
                <p></p>
            </div>
            <div>
                <input type="submit" value="Login" id="Login"  /> <!--onclick="UserValidation()" -->
                <!--<button type=submit value="Login" id="Login" onclick="UserValidation()"/> -->
            </div>
        </form><!-- form -->
        <div class="button">
           
        </div><!-- button -->
    </section><!-- content -->
</div><!-- container -->
</body>
</html>