Upload button Metabox for WordPress

/*dataset Upload Form*/
    $dataset_upload_folder = '/wp-content/blogs.dir/' . $blog_id . '/files/dataset';
    $dataset = new metabox('dataset');
    $dataset->title = 'Dataset Upload';
    $dataset->categories = '9';
    $dataset->html = <<<HEREHTML
    <p class="message">&nbsp;</p>
    <label for="datasetLoc">Location</label>
    <input type="text" name="datasetLoc" id="datasetLoc" value="" />
    <p>Location of zip file for dataset download.</p>
    <span id="dataset-browse">&nbsp;</span>

    <script type="text/javascript" src="$uploadifyRoot/uploadify/swfobject.js"></script>
    <script type="text/javascript" src="$uploadifyRoot/uploadify/jquery.uploadify.v2.1.0.min.js"></script>
    <script type="text/javascript">
        jQuery(document).ready(function($) {
            var uploadifyRoot = "$uploadifyRoot/uploadify/"
            jQuery('#dataset-browse').uploadify({
                'uploader'  : uploadifyRoot + 'uploadify.swf',
                'script'    : uploadifyRoot + 'uploadify.php',
                'cancelImg' : uploadifyRoot + 'cancel.png',
                'auto'      : true,
                'folder'    : '$dataset_upload_folder',
                'checkScript' : uploadifyRoot + 'check.php',
                'fileDesc' : 'File Description',
                'onError' : function(event, queueID, fileObj, errorObj, reposnse, data) {
                    jQuery('#dataset .message').text('Error: ' + errorObj.type + ' ' + errorObj.info);
                },
                'onComplete': function(event, queueID, fileObj, reposnse, data) {
                    jQuery('#dataset #datasetLoc').attr('value', '$site_url' + '/files/dataset/' + fileObj.name);
                    jQuery('#dataset .message').hide().text('Success!').fadeIn('slow').fadeTo(5000, 1).fadeOut('slow');
                }
            });
        });
        </script>
HEREHTML;