I have implemented an experimental feature to easily add upload functionality into websites (see button in the left margin). You just have to add two lines into your web page to be able to receive uploads (please remove the space in the opening script tag):

<scri pt type="text/javascript" src="http://dropster.org/dropme.js"></script>
<img rel="dropme"/>

Please note that the usual src attribute on the image tag is optional and defaults to the 80×15 “drop me stuff!” button.