title: Jquery counting
body: <p>How do i count #total value + 170 with jquery? </p>
  
  <pre><code>$("#member").click(function() {
  if ($('#member').is(':checked')) {
      var totalv = $("#total").val();
      var skatz = 170;
      var skaits = totalv + skatz;
      $("#total").val(skaits);
  }
  </code></pre>