fckedito 2.5.1 bug with flash

<input id="gggg" type="button" value="test()" onclick="test()" />
function test(){
  var o=document.getElementById("ffff");
  alert(o.getAttribute("type"));  //return button
  alert(o.attributes["type"].nodeValue); //return button
}

<embed id="ffff" src="http://www.tudou.com/v/W9XqdOthNag" type="application/x-shockwave-flash" width="400" height="300" allowFullScreen="true" wmode="transparent" allowScriptAccess="always"></embed>
function test(){
  var o=document.getElementById("ffff");
  alert(o.getAttribute("type"));  //return null   !!! why ?
  alert(o.attributes["type"].nodeValue); //return application/x-shockwave-flash
}