Проблема с JS и PHP

<script src = "toastr/toastr.js"></script>

<script type = "text/javascript">
setInterval(function ()
{
    <?php
    $dataMsg = mysql_query("SELECT * from toastr where id_user='$dataUser1[0]' and currency='BLK'");
    while($dataMsg1 = mysql_fetch_array($dataMsg, MYSQL_NUM))
    {
    ?>
        Command: toastr["<?php echo $dataMsg1[3]; ?>"]("<?php echo $dataMsg1[4]; ?>")
    toastr.options = {
      "debug": false,
      "newestOnTop": false,
      "progressBar": true,
      "positionClass": "toast-top-right",
      "preventDuplicates": false,
      "onclick": null,
     "showDuration": "5000",
      "hideDuration": "1000",
      "timeOut": "5000",
      "extendedTimeOut": "1000",
      "showEasing": "swing",
      "hideEasing": "linear",
      "showMethod": "fadeIn",
      "hideMethod": "fadeOut",
     "closeButton" : true,
    }
    <?php
    mysql_query("delete from toastr where id_toastr='$dataMsg1[0]'");
    }
    ?>
}, 10000);
</script>