webbrowser模拟点击div 没id 没name的button

[likess2]

<DIV class=\"btnWhite btFrontRight\" onclick=cBuild(15,1,4);>确定</DIV>

请问这个button要如何模拟点击？

[ZengHD]

        private void Form1_Load(object sender, EventArgs e)
        {
            webBrowser1.Navigate("about:blank");
            webBrowser1.Document.Write("<DIV class=\"btnWhite btFrontRight\" onclick=alert('ok');cBuild(15,1,4);>确定</DIV>");
        }

        private void button1_Click(object sender, EventArgs e)
        {
            HtmlElementCollection hc = webBrowser1.Document.GetElementsByTagName("div");
            if (hc != null && hc.Count > 0)
            {
                foreach (HtmlElement h in hc)
                {
                    if (h.OuterHtml.IndexOf("btnwhite btfrontright",StringComparison.CurrentCultureIgnoreCase)>0 && h.InnerText == "确定")
                    {
                        h.InvokeMember("onclick");
                    }
                }
            }
        }