title: Mini "image composer" in html/javascript?
body: <p>For a small project, I've to create in html/javascript (no Flash/Silverlight... it has to work on tablet devices) a small "image composer":</p>
  
  <p>The goal is to create an image, and it can be composed of many others, so the goal is to:</p>
  
  <ul>
  <li>upload images on the server</li>
  <li>have the possibility to add them on the "workspace", resize/rotate/move them</li>
  <li>Same thing with text</li>
  </ul>
  
  <p>The problem is that the application has to be compatible with IE7, so I cannot use html5.</p>
  
  <p>So do you think it's possible? Have you any link/experience in this domain? I've just no idea about how to do this. Is there some library which can do the job(or even help)?</p>
  
  <p>In fact I found a website which has almost exactly what I want: <a href="http://www.polyvore.com/cgi/app" rel="nofollow">http://www.polyvore.com/cgi/app</a></p>
  
  <p>How they did this?</p>
  
  <p>Thank you</p>