title: How to concatenate parameters before a ajax call
body: <p>This works:</p>
  
  <pre><code>$('#someId').live('click', function() { 
      var myData = '{ Periode: "something" }'
      $.ajax({
          type: "POST",
          url: "/Nyhedsbrev/SendMailKunTilMig",
          contentType: 'application/json; charset=utf-8',
          data: myData,
          dataType: 'json',
          success: function (data) {
          },
          error: function () {
              alert("error");
          }
      });
  });
  </code></pre>
  
  <p>This dosn't work, when I try to concatenate it, what can I do? It's nessesary to learn because I will later have many parameters.</p>
  
  <pre><code>$('#someId').live('click', function() { 
      var dataConcatenate = "something";
      var myData = '{ Periode: ' + dataConcatenate + ' }';
      $.ajax({
          type: "POST",
          url: "/Nyhedsbrev/SendMailKunTilMig",
          contentType: 'application/json; charset=utf-8',
          data: myData,
          dataType: 'json',
          success: function (data) {
          },
          error: function () {
              alert("error");
          }
      });
  });
  </code></pre>