private var _remselbutton:Button;

        private var _remallbutton:Button;

        private var _uploadbutton:Button;

        private var _progressbar:ProgressBar;

        private var _testButton:Button;

        //DataGrid Columns

        private var _nameColumn:DataGridColumn;

        private var _typeColumn:DataGridColumn;

        private var _sizeColumn:DataGridColumn;

        private var _creationDate:DataGridColumn;

        private var _modificationDate:DataGridColumn;

        private var _progressColumn:DataGridColumn;

        private var _columns:Array;

       

        //File Reference Vars

        [Bindable]

        private var _files:ArrayCollection;

        private var _fileref:FileReferenceList

        private var _file:FileReference;

        private var _uploadURL:URLRequest;

        private var  _totalbytes:Number;

       

        //File Filter vars

        private var _filefilter:Array;

        //config vars

        private var _url:String; // location of the file upload handler can be a relative path or FQDM

        private var _maxFileSize:Number; //bytes

        private var _variables:URLVariables; //variables to passed along to the file upload handler on the server.

       

        //Constructor   

        public function MultiFileUpload(

                                        dataGrid:DataGrid,

                                        browseButton:Button,

                                        removeAllButton:Button,

                                        removeSelectedButton:Button,

                                        uploadButton:Button,

                                        progressBar:ProgressBar,

                                        url:String,

                                        variables:URLVariables,

                                        maxFileSize:Number,

                                        filter:Array

                                        ){

            _datagrid = dataGrid;

            _browsebutton = browseButton;

            _remallbutton = removeAllButton;

            _remselbutton = removeSelectedButton;           

            _uploadbutton = uploadButton;

            _url = url;

            _progressbar = progressBar;

            _variables = variables;

            _maxFileSize = maxFileSize;

            _filefilter = filter;

            init();

        }

       

        //Initialize  Component

        private function init():void{

           

            // Setup File Array Collection and FileReference

            _files = new ArrayCollection();

            _fileref = new FileReferenceList;

            _file = new FileReference;

           

            // Set Up Total Byes Var

            _totalbytes = 0;

           

            // Add Event Listeners to UI

            _browsebutton.addEventListener(MouseEvent.CLICK, browseFiles);

            _uploadbutton.addEventListener(MouseEvent.CLICK,uploadFiles);

            _remallbutton.addEventListener(MouseEvent.CLICK,clearFileCue);

            _remselbutton.addEventListener(MouseEvent.CLICK,removeSelectedFileFromCue);

            _fileref.addEventListener(Event.SELECT, selectHandler);

            _files.addEventListener(CollectionEvent.COLLECTION_CHANGE,popDataGrid);

           

            // Set Up Progress Bar UI

            _progressbar.mode = "manual";

            _progressbar.label = "";

           

            // Set Up UI Buttons;

            _uploadbutton.enabled = false;

            _remselbutton.enabled = false;

            _remallbutton.enabled = false;

           

           

            // Set Up DataGrid UI

            _nameColumn = new DataGridColumn;

            _typeColumn = new DataGridColumn;

            _sizeColumn = new DataGridColumn;

               

            _nameColumn.dataField = "name";