solr/server/solr-webapp/webapp/js/lib/jquery.ajaxfileupload.js
function (element) {
        // Create an iframe to submit through, using a semi-unique ID
        var frame_id = 'ajaxUploader-iframe-' + Math.round(new Date().getTime() / 1000)
        $('body').after('<iframe width="0" height="0" style="display:none;" name="' + frame_id + '" id="' + frame_id + '"/>');
        $('#' + frame_id).load(function () {
          handleResponse(this, element);
        });
        console.log("settings.action: " + settings.action);
        // Wrap it in a form
        element.wrap(function () {
          return '<form action="' + settings.action + '" method="POST" enctype="multipart/form-data" target="' + frame_id + '" />'
        })
          // Insert <input type='hidden'>'s for each param
            .before(function () {
              var key, html = '';
              for (key in settings.params) {
                var paramVal = settings.params[key];
                if (typeof paramVal === 'function') {
                  paramVal = paramVal();
                }
                html += '<input type="hidden" name="' + key + '" value="' + paramVal + '" />';
              }
              return html;
            });
      }
function (element) {
        // Create an iframe to submit through, using a semi-unique ID
        var frame_id = 'ajaxUploader-iframe-' + Math.round(new Date().getTime() / 1000)
        $('body').after('<iframe width="0" height="0" style="display:none;" name="' + frame_id + '" id="' + frame_id + '"/>');
        $('#' + frame_id).load(function () {
          handleResponse(this, element);
        });
        console.log("settings.action: " + settings.action);
        // Wrap it in a form
        element.wrap(function () {
          return '<form action="' + settings.action + '" method="POST" enctype="multipart/form-data" target="' + frame_id + '" />'
        })
          // Insert <input type='hidden'>'s for each param
            .before(function () {
              var key, html = '';
              for (key in settings.params) {
                var paramVal = settings.params[key];
                if (typeof paramVal === 'function') {
                  paramVal = paramVal();
                }
                html += '<input type="hidden" name="' + key + '" value="' + paramVal + '" />';
              }
              return html;
            });
      }
/*
Wraps element in a <form> tag, and inserts hidden inputs for each
key:value pair in settings.params so they can be sent along with
the upload. Then, creates an iframe that the whole thing is
uploaded through.