title: Is it possible to add values to SESSION w/ jQuery
body: <p>I have a form with many rows of items, each line with checkbox that has item's ID.</p>
  
  <p>I need to take item ID and add it to php $_SESSION when a single checkbox or all checkboxes selected (REMOVE FROM SESSION IF UNCHECKED). Currently I have the following code to select all checkboxes:</p>
  
  <pre><code>var checkboxes = $(".chkbx").change(function() {
      var allIsChecked = checkboxes.length === checkboxes.filter(":checked").length;
      all[0].checked = allIsChecked;
      enableMyElement(checkboxes.filter(":checked").length &gt; 0);
      putInSession($(this).val());
  });
  var all = $("#checkall").change(function() {
      checkboxes.attr("checked",this.checked);
      enableMyElement(this.checked);
  });
  
  function putInSession(id) {
      $.ajax({
          url: actions.php,
          type: "POST",
          data: "action=addToSession&amp;ID="+id;                 
      });
  }   
  
  &lt;input id="checkall" type="checkbox"&gt;
  &lt;input class="chkbx" type="checkbox" value="360" name="delCont[]"&gt;
  &lt;input class="chkbx" type="checkbox" value="500" name="delCont[]"&gt;
  &lt;input class="chkbx" type="checkbox" value="510" name="delCont[]"&gt;
  </code></pre>
  
  <p>How do I update my PHP session with jQuery? Is it even possible? What are the alternatives?</p>
  
  <hr>
  
  <p>UPDATE:</p>
  
  <p>OK, Ajax is clearly the way to go. Added new function putInSession(). Still not clear how to integrate with my SelectAll fnctionality...</p>