[RCuPeR]

<script type="text/javascript">
$(document).ready(function(){
    $('#insert').click(function(){
         var formData = $("#iddd").attr('name');       
         
        $.ajax({
            url:'actions_stud_group.php'
            , type:'POST'
            , data: {group: formData}
            , success: function(data) {
                $('#res').html(data);
            }
        });
        return false;    
    });    
});
</script>

Говорит:

Warning: Invalid argument supplied for foreach()