CKEditor4.7.3 CKEditorFuncNum не получить

Question

В localhost я могу получить CKEditorFuncNum, но когда я использую его в клиенте, я не могу получить его! Я не знаю почему.

<script type="text/javascript">
    var ge = CKEDITOR.replace('TextArea1', {
        height: 400,
        filebrowserUploadUrl: "attion.php",
    });
</script>

uploadpic

function upload() {
    $extensions = array("jpg", "bmp", "gif", "png");
    $uploadFilename = $_FILES['upload']['name'];
    $uploadFilesize = $_FILES['upload']['size'];
    if ($uploadFilesize  > 1024*2*1000) {
         echo "<font color=\"red\"size=\"2\">*图片大小不能超过2M</font>";
         exit;
    }
    $extension = pathInfo($uploadFilename, PATHINFO_EXTENSION);
    if (in_array($extension, $extensions)) {
        $uploadPath ="upload/";
        $uuid = str_replace('.', '', uniqid("",TRUE)).".".$extension;
        $desname = $uploadPath.$uuid;
        $previewname = 'upload/'.$uuid;
        $tag = move_uploaded_file($_FILES['upload']['tmp_name'], $desname);
        $callback = $_REQUEST["CKEditorFuncNum"];
        echo "<script enter code heretype='text/javascript'>window.parent.CKEDITOR.tools.callFunction($callback,'".$previewname."','');</script>";
    } else {
        echo "<font color=\"red\"size=\"2\">*文件格式不正确（必须为.jpg/.gif/.bmp/.png文件）</font>";
    }
}