Asp.net background music playback

Function playmedia ()
{
VaR mediaplugin = Document. getelementbyid ("mediaplayer ");
Mediaplugin. Controls. Play ();
}

Function pausemedia ()
{
VaR mediaplugin = Document. getelementbyid ("mediaplayer ");
Mediaplugin. Controls. Pause ();
}

<Object ID = "mediaplayer" Height = "64" width = "260" classid = "CLSID: 6bf52a52-394a-11d3-b153-00c04f79faa6">
<Param name = "autostart" value = "-1">
<! -- Automatic playback? -->
<Param name = "balance" value = "0">
<! -- Adjust the left-right channel balance and the old player code above -->
<Param name = "enabled" value = "-1">
<! -- Whether the player can be controlled by humans -->
<Param name = "enablecontextmenu" value = "-1">
<! -- Enable context menu -->
<Param name = "url" value = "http: // ..htm">
<! -- Playback file address -->
<Param name = "playcount" value = "1">
<! -- Control the number of playbacks, which is an integer -->
<Param name = "rate" value = "1">
<! -- The playback speed is controlled. 1 is normal, and decimal places are allowed. -->
<Param name = "currentposition" value = "0">
<! -- Control settings: Current Position -->
<Param name = "currentmarker" value = "0">
<! -- Control settings: Current tag -->
<Param name = "defaultframe" value = "">
<! -- Display default frame -->
<Param name = "invokeurls" value = "0">
<! -- Script command setting: whether to call URL -->
<Param name = "baseurl" value = "">
<! -- Script command setting: called URL -->
<Param name = "stretchtofit" value = "0">
<! -- Scale up or not -->
<Param name = "volume" value = "50">
<! -- The default sound size is 0%-100%, and 50 is 50%. -->
<Param name = "mute" value = "0">
<! -- Mute or not -->
<Param name = "uimode" value = "mini">
<! -- Player display mode: full display all; Mini is the most simplified; none does not show the playback control, only the video window is displayed; invisible does not show all -->
<Param name = "windowlessvideo" value = "0">
<! -- If it is 0, full screen is allowed; otherwise, it can only be viewed in the window -->
<Param name = "fullscreen" value = "0">
<! -- Whether to enable automatic full screen playback -->
<Param name = "enableerrordialogs" value = "-1">
<! -- Enable error prompt report -->
<Param name = "samistyle" value = "">
<! -- Sami style -->
<Param name = "samilang" value = "">
<! -- Sami language -->
<Param name = "samifilename" value = "">
<! -- Subtitle id -->
</Object>

<Input type = "button" id = "btnstart" value = "start" onclick = "playmedia ();"/>|| |
<Input type = "button" id = "btnpause" value = "pause" onclick = "pausemedia ();"/>