在线等 asp.net 在CS文件中动态的设置前提中MediaPlayer的URL值
我想在一个.aspx页面中加一个MediaPlayer播放器，想在CS的文件中动态设置播放器的URL值，小弟以知道使用JS来做，但是JS不会，请GGJJ指教。
.aspx播放器部分代码：
<OBJECT   id= "MediaPlayer "   height= "63 "   width= "176 "   classid= "CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6 "VIEWASTEXT>
<PARAM   NAME= "URL "   VALUE=MusicURL>
<PARAM   NAME= "rate "   VALUE= "1 ">
<PARAM   NAME= "balance "   VALUE= "0 ">
<PARAM   NAME= "currentPosition "   VALUE= "0 ">
<PARAM   NAME= "defaultFrame "   VALUE= " ">
<PARAM   NAME= "playCount "   VALUE= "1 ">
<PARAM   NAME= "autoStart "   VALUE= "-1 ">
<PARAM   NAME= "currentMarker "   VALUE= "0 ">
<PARAM   NAME= "invokeURLs "   VALUE= "-1 ">
<PARAM   NAME= "baseURL "   VALUE= " ">
<PARAM   NAME= "volume "   VALUE= "50 ">
<PARAM   NAME= "mute "   VALUE= "0 ">
<PARAM   NAME= "uiMode "   VALUE= "mini ">
<PARAM   NAME= "stretchToFit "   VALUE= "0 ">
<PARAM   NAME= "windowlessVideo "   VALUE= "0 ">
<PARAM   NAME= "enabled "   VALUE= "-1 ">
<PARAM   NAME= "enableContextMenu "   VALUE= "-1 ">
<PARAM   NAME= "fullScreen "   VALUE= "0 ">
<PARAM   NAME= "SAMIStyle "   VALUE= " ">
<PARAM   NAME= "SAMILang "   VALUE= " ">
<PARAM   NAME= "SAMIFilename "   VALUE= " ">
<PARAM   NAME= "captioningID "   VALUE= " ">
<PARAM   NAME= "enableErrorDialogs "   VALUE= "0 ">
<PARAM   NAME= "_cx "   VALUE= "4657 ">
<PARAM   NAME= "_cy "   VALUE= "1667 ">
<!--   文件地址-->
</OBJECT>


------解决方案--------------------
<PARAM NAME= "URL " VALUE=MusicURL>

该成 <PARAM NAME= "URL " VALUE= <%= musicUrl%> >

CS:
定义一个 protected string musicUrl