how to disable a handler with a click

how to disable a handler with a click

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<p class=MsoNormal>I have a check box that I want to disable the sound in my
app when its checked and restore sounds when its unchecked.<o:p></o:p>
<p class=MsoNormal><o:p> </o:p>
<p class=MsoNormal>The sounds in my app are created when the user clicks on a
link that has a handler like this: <o:p></o:p>
<p class=MsoNormal><o:p> </o:p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>onclick="execEventSound('../sounds/sound1.mp3')"<o:p></o:p></span>
<p class=MsoNormal><o:p> </o:p>
<p class=MsoNormal>I was thinking the easy way to disable that would be to
insert or append something  to it. So my question is<o:p></o:p>
<p class=MsoNormal><o:p> </o:p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>a)<span style='font:7.0pt "Times New Roman"'>     
</span></span><![endif]>Can you insert or append HTML or text to a “onclick”,
e.g. how would I select it as a target?<o:p></o:p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='mso-list:Ignore'>b)<span style='font:7.0pt "Times New Roman"'>     
</span></span><![endif]>What would be the best way to disable this onclick?<o:p></o:p>
<p class=MsoNormal><o:p> </o:p>
<p class=MsoNormal>Thanks<o:p></o:p>
<p class=MsoNormal><o:p> </o:p>
<p class=MsoNormal>Mitch<o:p></o:p>
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