ho fatto una pagina html e poi avevo bisogno di jscript per poter modificare dei parametri dinamicamente,ma non capisco perchè non funziona(non sono bravo cn jscript quindi magari sbaglio sintassi).questa è la mia pag html

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<HTML>
<HEAD>
<TITLE>CrazyTalk
</TITLE>
</HEAD><BODY>
<div id="faccia" style="position: absolute; left:500; top:500;">
<OBJECT ID='CrazyTalk' classid='CLSID:13149882-f480-4f6b-8c6a-0764f75b99ed'
codebase='http://plug-in.reallusion.com/CrazyTalk4.cab#version=4,5,615,1'
width='228' height='200'>
<PARAM Name='LifeMode' Value='1'>
<PARAM Name='StretchMode' Value='1'>
<PARAM Name='ModelName' Value='esempio.ctm'>
<PARAM Name='ScriptName' Value=''>
<PARAM Name='ControlStyle' Value='0'>
<PARAM Name='BorderStyle' Value='0'>
<PARAM Name='MenuStyle' Value='0'>
<PARAM Name='BackMode' Value='-1'>
<PARAM Name='AutoPlay' Value='1'>
</OBJECT>

<object classid="clsid:B7A59580-B39D-4BF9-B968-1BFA25156691" id="RLTTSPlayer" codebase="http://www.reallusion.com/plug-in/rltts.cab#version=1,0,1409,1" width="228" height="24">
<param name="_Version" value="65536">
<param name="_ExtentX" value="2646">
<param name="_ExtentY" value="1323">
<param name="_StockProps" value="0">
<param name="BackColor" value="0">
<param name="ShowControl" value="1">
<param name="ForeColor" value="65535">
<param name="FontName" value="Arial">
<param name="FontSize" value="14">
<param name="FontStyle" value="0">
<param name="TTSEngine" value="Microsoft SAPI 4.1">
<param name="Speed" value="50">
<param name="Pitch" value="50">
<param name="Volume" value="0">
<param name="AutoLoop" value="0">
<param name="TextContent" value="Hello, This is a TTS Demo">
</object>

<script language="javascript">
RLTTSPlayer.AttachCtrl(CrazyTalk);
</script>
</div>
<object id="sound1" classid="CLSID:22D6F312-B0F6-11D0-94AB-0080C74C7E95" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,5,715" type="application/x-oleobject" standby="Caricamento...">
<param name="AutoStart" value="true">
<param name="ShowControls" value="false">
<param name="ShowStatusBar" value="false">
<param name="loop" value="false">
<param name="src" value="alfonso.wav">
<param name="autostart" value="false">
</object>

<input type="button" value="play" onclick="playall()">
<input type="button" value="stop" onclick="document.sound1.stop()">
<input type="button" value="pause" onclick="document.sound1.pause()">


//qui c'è la parte javascript
<script type="text/javascript">
function playall(){
document.sound1.getElementByName("src").setAttribu te("value","alfonso.wav");
document.sound1.play();
document.getElementById("RLTTSPlayer").getElementB yName("TextContent").setAttribute("value","testo da dire");
document.CrazyTalk.play();
}

</script>
</BODY>
</HTML>

in pratica se tolgo document.sound1.....setattribute e lascio solo il play di sotto l audio va....se invece tento di settarel 'attributo da errore perchè?