关于在线播放视频的问题(realplayer)

<object id="objWMP" classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="306" height="224">
              <param name="CONSOLE" value="one">
              <param name="CONTROLS" value="imagewindow">
              <param name="BACKGROUNDCOLOR" value="black">
              <param name="CENTER" value="false">
              
              <param name="SRC" value="vreal/kuan/11.mp3">
              <param name="CurrentPosition" value="30">
              <param name="autostart" value="true">
               
                            
              
          </object></td>
          <td background="images1/mp_rightbg01.gif" width="14"></td>
        </tr>
      </table>
        <table width="333" border="0" cellpadding="0" cellspacing="0">
          <tr>
            <td width="12" align="left" background="images1/mk_leftbg02.gif" style="height: 20px"></td>
            <td width="308" align="center" bgcolor="#000000" style="height: 20px"><object id=RVOCX classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=20 height=20>
                <param name="CONTROLS" value="RWCtrl">
                <param name="CONSOLE" value="one">
              </object>
              <object id=Object1 classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=115 height=20>
                  <param name="CONTROLS" value="PositionSlider">
                  <param name="CONSOLE" value="one">
          </object>
          <object id=Object2 classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=20 height=20>
                  <param name="CONTROLS" value="FFCtrl">
                  <param name="CONSOLE" value="one">
                </object>
                <object id=Object3 classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=151  height=20>
                  <param name="CONTROLS" value="PositionField">
                  <param name="CONSOLE" value="one">
            </object></td>
            <td width="13" background="images1/rk_rightbg02.gif" style="height: 20px"></td>
          </tr>
          <tr>
            <td colspan="3"><table width="333" border="0" cellspacing="0" cellpadding="0" height="22">
                <tr>
                  <td width="13" background="images1/mk_leftbg02.gif"></td>
                  <td width="36" align="center" bgcolor="#000000"><object id=Object4 classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=34 height=21>
                    <param name="CONTROLS" value="PlayButton">
                    <param name="CONSOLE" value="one">
                  </object></td>
                  <td width="26"  bgcolor="#000000"><object id=RVOCX2 classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=25 height=21>
                    <param name="CONTROLS" value="StopButton">
                    <param name="CONSOLE" value="one">
                  </object></td>
                  <td width="26"><a href=#><img src="images1/rk_pre.gif" alt="无" border="0"></a></td>
                  <td width="26"><a href='main_real_k.asp?id=1502' target='_top'><img src="images1/rk_next.gif" alt="下一文件" border="0"></a></td>
                  <td width="26"><img id=documentControl onClick='toDocument()' alt="全部讲义" src="images1/rk_document1.gif" width="26" height="22"></td>
                  <td bgcolor="#EDEDED" width="26"><img id=ForSetPlayTime  title="选择播放时间" onClick='SetPlayTime()' alt="选择播放时间" src="../../../../images1/rk_time01.gif" width="26" height="22"></td>
                  <td bgcolor="#EDEDED" width="26"><img src="images1/rk_sound.gif" width="26" height="22"></td>
                  <td bgcolor="#EDEDED" width="120"><object id=Object5 classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width=100% height=22>
                      <param name="CONTROLS" value="VolumeSlider">
                      <param name="CONSOLE" value="one">
                  </object>

这是整个realplayer播放器的代码,我设置了<param name="CurrentPosition" value="30">
,播放器并没有从30秒的地方开始播放,还是从头播放! --------------------编程问答--------------------
似乎这个属性是只读的
看看有没别的属性能设这个开始播放位置 --------------------编程问答-------------------- 一般来说都是SetPosition属性或方法 --------------------编程问答-------------------- <object ID="Object1" CLASSID="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" HEIGHT="280" WIDTH="320"> 
    <param name="SRC" value="vreal/kuan/11.mp3">
    <param name="CONTROLS" value="ImageWindow">
    <param name="ShowControls" value="1">
    <param name="AUTOSTART" value="1">
    
    <param name="CONSOLE" value="Video">
    <param name="CurrentPosition" value="">
    </object> 
    <br />
    <object width="320" height="30" classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA">
    <param name="CONTROLS" value="StatusBar">
    <param name="CONSOLE" value="Video">
    
    </object>
    <br />
    <object width="320" height="30" classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA">
    <param name="CONTROLS" value="ControlPanel">
    <param name="CONSOLE" value="Video">
    <param name="CurrentPosition" value="30">
    <param name="AUTOSTART" value="TRUE">
    <param name="PREFETCH" value="0">
    <param name="LOOP" value="0">
    <param name="NUMLOOP" value="0">
</object>

    </form>
</body>
<script language =javascript >
    Object1.SetPosition(30000);
</script>
我用setposition,还是没用啊

补充：.NET技术 ,  C#