Ajax Method in Jquery

 <div dir="ltr" style="text-align: left;" trbidi="on">  
 <br />  
 <h1>Ajax Method in Jquery</h1>  
 <pre style="font-family:arial;font-size:12px;border:1px dashed #CCCCCC;width:99%;height:auto;overflow:auto;background:#f0f0f0;;background-image:URL(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivzH9V1GHFkK0q0bNtjJguqmg7i1bgxDsQWSCI9cnYgxNE7dA0bZvBWbqlA_dzq3nMzmWXOvoqdRA1U4Hg4pJHeN2PZAqEeWfX_tsXGN-03XK_CRONhL-dy46GIhewvLgeD2l0PhsYb8Mm/s320/codebg.gif);padding:0px;color:#000000;text-align:left;line-height:20px;"><code style="color:#000000;word-wrap:normal;"> $(document).ready(function() {   
  $("#from_station1").change(function(){ var city_id = $(this).val();   
  $.ajax({   
     method: "POST",   
     url: "get_to_station.php?city_id=" + city_id,   
     success:function(data)   
     {   
        $("#settostation").html(data); // data setting on particular id   
     });   
  });   
  });    
 </code></pre>  
 // Ajax with success redirection with file upload  
 $(function () {  
   $("#testfrm").validate({  
     rules: {  
       name: {  
         required: true  
       },  
       address: {  
         required: true,  
         maxlength: 100  
       },  
       file: {  
         required: true  
       }  
     },  
     messages: {  
       name: {  
         required: "Please select name."  
       },  
       address: {  
         required: "Please enter address.",  
         maxlength: 'Address length should not be more than 100.'  
       },  
       file: {  
         required: "Please select file."  
       }  
     },  
     submitHandler: function (response) {  
       var formData = new FormData($('#testfrm')[0]);  
       $.ajax({  
         url: set_your_url,  
         type: 'POST',  
         data: formData,  
         dataType: 'json',  
         contentType: false,  
         processData: false,  
         beforeSend: function () {            
           // Start loading            
         },  
         complete: function () {  
           //Stop loading  
         },  
         success: function (response) {  
           switch (response.status) {  
             case 1:  
               showalert(response.msg, 'testfrm', 'alert-danger');  
               $('form[name="testfrm"]').trigger("reset");  
               break;  
             case 0:  
               showalert(response.msg, 'testfrm', 'alert-success');  
               window.location = 'redirection location';                
               break;  
             default:  
               break;  
           }  
         }  
       });  
     }  
   });  
 });  
 </div>