Uploadify buttonClass

给上传按钮定义class名称

<input type="file" name="file_upload" id="file_upload" />

$(function() {
    $("#file_upload").uploadify({
        'buttonClass' : 'some-class',
        'swf'         : '/uploadify/uploadify.swf',
        'uploader'    : '/uploadify/uploadify.php' 
    });
});