菜鸟求救啊?

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" width="17" height="17" align="absmiddle" onmouseover="javascript:ctlog(???)" >
<param name="allowScriptAccess" value="sameDomain" />
<param name="movie" value="voice.swf" />
<param name="loop" value="false" />
<param name="menu" value="false" />
<param name="quality" value="high" />
<param name="wmode"  value="transparent">
<param name="FlashVars" value="audio=' + a + '">
<embed wmode="transparent" src="voice.swf" loop="false" menu="false" quality="high" bgcolor="#ffffff" width="17" height="17" align="absmiddle" allowScriptAccess="sameDomain" FlashVars="audio=' + a + '" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
</object>我希望上面的swf在鼠标经过时执行下面的声音文件,
http://dict.yodao.com/speach?audio=343887/90443775
ctlog这个函数该怎么写啊?