PLupload

var uploader = new plupload.Uploader({
         runtimes: 'html5,flash,silverlight',
         browse_button: 'pickfiles',
         container: 'uploader',
         max_file_size: '20mb',
         unique_names: true,
         multiple_queues: false,
         url: '/Home/Upload',
         flash_swf_url: '/upload/plupload.flash.swf',
         silverlight_xap_url: '/upload/plupload.silverlight.xap',
         filters: [
               { title: "Image files", extensions: "jpg,gif,png" },
               { title: "Zip files", extensions: "zip" }
           ],
         chunk_size: '2mb',
         resize: { width: 320, height: 240, quality: 90 }
      });

      uploader.bind("Init", function (up, params) {
         $("#runtime").html("<div>Current runtime: " + params.runtime + "</div>");
      });

      $("#uploadfiles").bind("click", function (e) {
         uploader.start();
         e.preventDefault();
      });

      uploader.init();

      uploader.bind("FilesAdded", function (up, files) {
         $.each(files, function (i, file) {
            $('#runtime').append(
                '<div id="' + file.id + '">' +
                    file.name + ' (' + plupload.formatSize(file.size) + ') <b></b>' +
           '</div>');
         });
         up.refresh();
      });

      uploader.bind("UploaderProgress", function (up, file) {
         $("#" + file.id + " b").html(file.percent + "%");
      });

      uploader.bind("Error", function (up, err) {
         $('#runtime').append("<div>Error: " + err.code +
                ", Message: " + err.message +
                (err.file ? ", File: " + err.file.name : "") +
                "</div>");
         up.refresh();
      });

      uploader.bind("FileUploaded", function (up, file) {
         $("#" + file.id + " b").html("100%");
      });






/////////////////////////////////// HTML code

<div class="container">
                  <div>Logo: </div>
                  <div style="clear"></div>
                  <div id="uploader">
                    <div id="runtime" class="right">
                        No runtime was found !
                    </div>
                    <div>
                        <a id="pickfiles" href="#">[Select files]</a>
                        <a id="uploadfiles" href="#">[Upload files]</a>
                    </div>
                  </div>
               </div>