Javascript control on Firefox 2/3 with flash 9

my page include some javascript to control the play,rewind..and other functions of the swffile showEdit.swf, it works in Safari/IE with flash-plugin 8/9 installed but not works in Firefox with flash plugin 9(would reports obj.play() is not a function, is any one point out what is the problem or there are techniques i can use? >>>>>>>the source >>>>>>>codes>>>>>>>>>>>>>>>>>> <script> function show(){ var obj=document.getElements("showEdit");//it works in Firefox obj.play();//it works in IE,but not in Firefox. } </script> >>>>>>>>>>>>> <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="202" height="498" id="showEdit"> <param name="movie" value="flash/show_edit.swf" /> <param name="quality" value="high" /> <param name="allowScriptAccess" value="sameDomain" /> <param name="FlashVars" value="userid=rasy" /> <param name="name" value="FlashVars" /> <embed src="flash/show_edit.swf" width="202" height="498" quality="hight" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" allowscriptAccess="sameDomain" FlashVars="userid=rasy" name="FlashVars" name="showEdit"> </embed> </object> _________________________________________________________________ 多个邮箱同步管理，live mail客户端万人抢用中 http://get.live.cn/product/mail.html