This is for a menu. jArray4[i] is what appears on the button.
No matter what is selected  data: {'action': ''+jArray4[i]+''},
results in the last button being selected. I am new to Jquery so I don't know how to properly pass the correctly selected button. 
var object = {   
  text : ''+(jArray4[i]) +'',
  onselect : function() {
    jQuery.ajax({
      type: "POST",
      dataType: "json",
      url: 'ajaxreturn.php',
      data: {'action': ''+jArray4[i]+''},
      success: function(json)
      {
        alert(json.first);
      }
    });        
  }
};
options.push(object);
Sandcastle.addToolbarMenu(options);
 
    