title: how to find coordinates of an HTML button or image, cross browser?
body: <p>There was a thread on this in comp.lang.javascript recently where
  victory was announced but no code was posted:</p>
  
  <p>On an HTML page how do you find the lower left corner coordinates of an element (image or button, say)
  reliably across browsers and page styles?  The method advocated in "Ajax in Action" (copy I have) doesn't seem to work in IE under some circumstances.  To make the problem easier, let's assume we can set the global document style to be "traditional" or "transitional" or whatever.</p>
  
  <p>Please provide code or a pointer to code please (a complete function that works on all browsers) -- don't just say "that's easy" and blather about what traversing the DOM -- if I want to read that kind of thing I'll go back to comp.lang.javascript.  Please scold me if this is a repeat and point me to the solution -- I did try to find it.</p>