sorta like this??
Code:
<script>
function testClick(){
document.getElementById('opt11').click();
document.getElementById('opt22').click();
document.getElementById('opt31').click();
}
</script>
<input type=radio name=r1 id=opt11 onclick="alert('you clicked '+this.id)">
<input type=radio name=r1 id=opt12 onclick="alert('you clicked '+this.id)">
<br>
<input type=radio name=r2 id=opt21 onclick="alert('you clicked '+this.id)">
<input type=radio name=r2 id=opt22 onclick="alert('you clicked '+this.id)">
<br>
<input type=radio name=r3 id=opt31 onclick="alert('you clicked '+this.id)">
<input type=radio name=r3 id=opt32 onclick="alert('you clicked '+this.id)">
<br>
<input type=button value="simulate click" onclick="testClick()">
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