怎么用JS给视频文件播放地址赋值啊
1.avi格式
代码片断如下：
<object   id= "video "   width= "400 "   height= "200 "   border= "0 "   classid= "clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA ">
<param   name= "ShowDisplay "   value= "0 ">
<param   name= "ShowControls "   value= "1 ">
<param   name= "AutoStart "   value= "1 ">
<param   name= "AutoRewind "   value= "0 ">
<param   name= "PlayCount "   value= "0 ">
<param   name= "Appearance   value= "0   value= " " ">
<param   name= "BorderStyle   value= "0   value= " " ">
<param   name= "MovieWindowHeight "   value= "240 ">
<param   name= "MovieWindowWidth "   value= "320 ">
<param   name= "FileName "   value= "/Mbar.avi ">
<embed   width= "400 "   height= "200 "   border= "0 "   showdisplay= "0 "   showcontrols= "1 "   autostart= "1 "   autorewind= "0 "   playcount= "0 "   moviewindowheight= "240 "   moviewindowwidth= "320 "   filename= "/Mbar.avi "   src= "Mbar.avi ">
</embed>

<OBJECT   ID=video1   CLASSID= "clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA "   HEIGHT=288   WIDTH=352>
<param   name= "_ExtentX "   value= "9313 ">
<param   name= "_ExtentY "   value= "7620 ">
<param   name= "AUTOSTART "   value= "0 ">
<param   name= "SHUFFLE "   value= "0 ">
<param   name= "PREFETCH "   value= "0 ">
<param   name= "NOLABELS "   value= "0 ">
<param   name= "SRC "   value= "rtsp://203.*.*.35/vod/dawan-a.rm ">
<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 "> <embed   SRC   type= "audio/x-pn-realaudio-plugin "   CONSOLE= "Clip1 "   CONTROLS= "ImageWindow "   HEIGHT= "288 "   WIDTH= "352 "   AUTOSTART= "false ">
</OBJECT>

<object   id= "NSPlay "   width=200   height=180   classid= "CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95 "   codebase= "http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,5,715 "   standby= "Loading   Microsoft   Windows   Media   Player   components... "   type= "application/x-oleobject "   align= "right "   hspace= "5 ">
<param   name= "AutoRewind "   value=1>