ASP.NET - Call method with jQuery AJAX

gistfile1.js

[WebMethod]
public static void SomeMethod(int paramA, string paramB)
{
  ...
}

$.ajax({
  type: "POST",
  contentType: "application/json; charset=utf-8",
  url: window.location.href + "/SomeMethod",
  data: "{ 'paramA': '" + valueA + "', 'paramB': '" + valueB + "' }",
  dataType: 'json',
  success: function (response) {
    ...
  }  
});