ajax

$(document).ready(function(){
  $(".button").click(function(){
  
      var number = $(".field_with_number").text();
      var address = $(".field_with_address").text();

      $.ajax({
          type: "POST",
          url: "/settings/setmin",
          data: {min: number, addr: address},
          dataType: "html",
          contentType: "application/json;charset=utf-8", 
          success: function(){
              alert("success!");
          }
      });
  
  });
});

sample code for fail:

  fail: (function() {
    alert( "error" );
  })