title: How to take a screen shot of a web page?
body: <p>I want to add a button to one of our web sites that will allow the user to file a bug with our bug tracking system.</p>
  
  <p>One of the feature requests is that a screen cap of the page in question be sent along.</p>
  
  <p>Without installing something on the end users machine, how can I do this?  Does javascript have some sort of screen cap api?</p>