js 出现怪问题 NND

<a title='delete this comment' href='javascript:DelComment(40);' target='_blank'>Delete</a>
我可以把手 按在 圣经上 发誓，DelComment 这个 方法 存在的。点击这个超链接后，ie 6 下 开了一个 新窗口，地址栏 出现ff 下 出现 DelComment is not defined为什么呢？改为 ：<a title='delete this comment' href='#' onclick="javascript:DelComment(40);" target='_blank'>Delete</a> 或者<a title='delete this comment' href='javascript:;' onclick="javascript:DelComment(40);" target='_blank'>Delete</a>倒是弹出 对话框了，删除程序也执行了，但是弹出 一个 新窗口。大侠 们 遇到过这种怪问题吗？指点迷津呀function DelComment(id)
                    {
                        if(confirm("Delete this comment,are you sure?"))
                        {
                            getstatu("<span style='color:red'>deleting.....</span>");
                         $.ajax(
                         {
                             type:"GET",
                             url:'GetCommentById.ashx?ctype=delete&cid='+id,
                             success:function(return_data){getstatu(return_data);},
                             error:function(){getstatu("<span style='color:red'>Errors occur just now,please try again......</span>");}
                         }
                         );
                         $("#client_html_comment_list_"+id).hide();
                        }
                        //return false;
                    }