function drawShadows() {
  var iOffset   = 2;
  var aElements = $$('.sdw');
  var iCount    = aElements.length;
  var i         = 0;
  for( i ; i < iCount ; i++ ) {
    var aOffset = aElements[i].cumulativeOffset();
    var iWidth  = parseInt(aElements[i].getWidth()) + 0;
    var iHeight = parseInt(aElements[i].getHeight());

    var iBottom = aOffset[1] + iHeight;
    var iRight  = aOffset[0] + iWidth;
    $$('body')[0].insert({bottom:'<div class="shadow" style=" left:' + iRight + 'px;top: ' + (aOffset[1] + iOffset) + 'px;height: ' + (iHeight - iOffset) + 'px;width:' + iOffset + 'px;"><\/div><div class="shadow" style="left:' + (aOffset[0] + iOffset) + 'px;top: ' + (iBottom) + 'px;height: ' + (iOffset) + 'px;width:' + iWidth + 'px;"><\/div>'});
  }

}

function hideShadows() {
  var aElements = $$('.shadow');
  var iCount    = aElements.length;
  var i         = 0;
  for( i ; i < iCount ; i++ ) {
    aElements[i].remove();
  }
}