菜鸟，问个IE提示脚本出错的问题,在线等

这是语句

<script type="text/javascript">/* Modified to support Opera */function bookmarksite(title,url){if (window.sidebar) // firefoxwindow.sidebar.addPanel(title, url, "");else if(window.opera && window.print){ // operavar elem = document.createElement('a');elem.setAttribute('href',url);elem.setAttribute('title',title);elem.setAttribute('rel','sidebar');elem.click();} else if(document.all)// iewindow.external.AddFavorite(url, title);}</script>



IE提示 行:1 char:401 错误:缺少 } 代码:0 URL:

请问哪里缺少一个}