<form name="open&close">
<input type="radio" name="開關" value="開" unchecked onclick="window3=window.open ('sample41.htm','messagewindow','scrollbars=no,width=400,height=150');">
<FONT color=blue>播放音樂</FONT>
<input type="radio" name="開關" value="關" checked onclick="window3.close();">
<FONT color=blue>停止</FONT>
</form>>
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