Rails spinoffs - Aug 2005 - Position.clone and scroll offsets

I noticed that in a case where I use Position.clone, the element with 
the cloned position is displayed somewhere off. My understanding of 
positioning is a bit shaky at times, but I think clone needs to take 
into account the scroll offsets as shown below.

Michael

var Position = {
  ...

  clone: function(source, target) {
    source = $(source);
    target = $(target);
    target.style.position = ''absolute'';
    var offsets = this.cumulativeOffset(source);
    var scrolls = this.realOffset(source); // ### new
    target.style.top    = (offsets[1] - scrolls[1]) + ''px'';
    target.style.left   = (offsets[0] - scrolls[0]) + ''px'';
    target.style.width  = source.offsetWidth + ''px'';
    target.style.height = source.offsetHeight + ''px'';
  }
}


-- 
Michael Schuerig                              Life is just as deadly
mailto:michael@schuerig.de                               As it looks
http://www.schuerig.de/michael/          --Richard Thompson, Sibella