Interactive drawings in webapp
<p><br>
 For a web app I am designing, looking for a graphics library (java script based or not) to display in the browser. The application requires to map a production layout, so may only need to draw shapes (rectangles, cubes etc) and interactively modify the size of them. Any suggestion would be helpful. I am aware of widget libraries (jquerUI etc), and some graphing packages (protovis), but hope for something more suitable.
thanks.</p>
