试<object id="m">这里是你的swf</Object><SCRIPT LANGUAGE="JAVASCRIPT">
function window.onload(){
  alert("width:"+m.offsetWidth+" height: "+m.offsetHeight);
}
</SCRIPT>

解决方案 »

  1.   

    <OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" WIDTH="120" HEIGHT="60" id="baobao" ALIGN="" VIEWASTEXT>
     <PARAM NAME=movie VALUE="http://expert.csdn.net/images/ad/WIBU.swf"> <PARAM NAME=quality VALUE=high>
    <EMBED src="/images/ad/WIBU.swf" quality=high bgcolor=#FFFFFF  WIDTH="120" HEIGHT="60" NAME="120x60" ALIGN=""
     TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"></EMBED>
    </OBJECT>
    <SCRIPT LANGUAGE="JAVASCRIPT">
    function window.onload(){
      alert("width:"+baobao.width+" height: "+baobao.height);
    }
    </SCRIPT>