<div id="gonna_upload_this">
<input type="hidden" name="submit_action" value="">
<?_("Attach file:")>
-<input name="attachfile" id="attachfile" class="attachfile" size=40 type="file" onChange="$('gonna_upload_this').style.display='none'; document.upload_attachment_form.submit(); $('attachfile').value=''; show_attachments_form();">
+<input name="attachfile" id="attachfile" class="attachfile" size=40 type="file" onChange="$('gonna_upload_this').style.display='none'; $('upload_throbber').style.display='block'; document.upload_attachment_form.submit(); $('attachfile').value=''; show_attachments_form();">
</div>
+
+<div id="upload_throbber" style="display:none">
+<?_("Upload")> <img src="static/throbber.gif" border="0">
+</div>
+
</form>