object的事件如何去响应?

刚才想做一个网页播放器,用下面的代码已经可以播放了,但是我希望它可以响应鼠标点击事件,我在代码中加的ScreenClicked()完全不起作用请问正确应该怎样做?还有,object的事件可否在C#的后台代码中实现? 我在object里加了runat="server"后编译会出错,错误是
E:\work\VideoWebSite\Default.aspx(11): Build (web): Guid should contain 32 digits with 4 dashes (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx).
    <div>
        <object id="rmVideo" classid="clsid:CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA"
            height="300" width="400" onclick="ScreenClicked()">
            <param name="_ExtentX" value="22304"/> 
            <param name="_ExtentY" value="14288"/> 
            <param name="AUTOSTART" value="-1"/> 
            <param name="SHUFFLE" value="0"/> 
            <param name="PREFETCH" value="0"/> 
            <param name="NOLABELS" value="0"/> 
            <param name="SRC" value="op01.rmvb"/> 
            <param name="CONTROLS" value="ImageWindow"/> 
            <param name="CONSOLE" value="Clip1"/> 
            <param name="LOOP" value="0"/> 
            <param name="NUMLOOP" value="0"/> 
            <param name="CENTER" value="0"/> 
            <param name="MAINTAINASPECT" value="0"/> 
            <param name="BACKGROUNDCOLOR" value="#000000"/> 
        </object>
        <input id="Submit1" type="submit" value="aba" />
        <script type="text/javascript">
        function ScreenClicked()
        {
            var inp = document.getElementById("Submit1");
            if (!inp) {
                alert("error");
                return;
            }
            inp.value = "hello change";
            return;
        }
        </script>
    </div>