怎么这段JS在DW能运行，VS不行？


<title>亮丽的JS图片渐变导航</title>
<script language=JavaScript>
nereidFadeObjects = new Object();
nereidFadeTimers = new Object();
function nereidFade(object, destOp, rate, delta){
if (!document.all)
return
    if (object != "[object]"){ setTimeout("nereidFade("+object+","+destOp+","+rate+","+delta+")",0);
        return;
    }
    clearTimeout(nereidFadeTimers[object.sourceIndex]);
    diff = destOp-object.filters.alpha.opacity;
    direction = 1;
    if (object.filters.alpha.opacity > destOp){
        direction = -1;
    }
    delta=Math.min(direction*diff,delta);
    object.filters.alpha.opacity+=direction*delta;
    if (object.filters.alpha.opacity != destOp){
        nereidFadeObjects[object.sourceIndex]=object;
        nereidFadeTimers[object.sourceIndex]=setTimeout("nereidFade(nereidFadeObjects["+object.sourceIndex+"],"+destOp+","+rate+","+delta+")",rate);
    }
}</script>
 <table border="0" cellspacing="1" cellpadding="0" align="center">
<tr>打开页面请等待一会，图片加载完才能看到效果！</tr>
          <tr align="center"> 
            <td width="93" height="31" background="in.jpg"><a href="#p"><img src="high.jpg" width="93" height="31" border="0" alt="学习型源代码"  onmouseover=nereidFade(this,100,5,7) style="FILTER: alpha(opacity=0);border:1px solid #000000" onmouseout=nereidFade(this,01,7,5)></a></td>
          </tr>
        </table>
2张图片渐变效果，放到DW按F12能正常运行，放大VS里 报错：缺少“]”,缺少“]”