sumando automaticamente

[sitges65]

En este otro form lo hace bién excepto si no quito la lena de

<input name="Radio1" type="radio" onfocus="Sumar();" checked="checked" value="0"/><br>

pero no necesito ese input para nada...

................
<script type="text/javascript">
function Sumar(){
interval = setInterval("calcular()",1);
}
function calcular(){
uno = document.autoSumForm.Select1.value;
dos = document.autoSumForm.Select2.value;
document.autoSumForm.Total.value = (uno * 1) + (dos * 1);
}
function NoSumar(){
clearInterval(interval);
}
</script>


<form name="autoSumForm">

<input name="Radio1" type="radio" onfocus="Sumar();" checked="checked" value="0"/><br>
<br>
<select name="Select2">
<option selected="" value="0" onfocus="Sumar">NINGUNO</option>
<option value="20" onfocus="Sumar();" onBlur="NoSumar();">B</option>
<option value="30" onfocus="Sumar();" onBlur="NoSumar();">C</option>
<option value="40" onfocus="Sumar();" onBlur="NoSumar();">D</option>
<option value="10" onfocus="Sumar();" onBlur="NoSumar();">A</option>
</select><br>
<select name="Select1">
<option selected="" value="0"onfocus="Sumar();" onBlur="NoSumar();">none</option>
<option value="400"onfocus="Sumar();" onBlur="NoSumar();">q</option>
<option value="800"onfocus="Sumar();" onBlur="NoSumar();">t</option>
</select><br>
&nbsp;<br>
<input type=text name="Total">
</form>
.......................
Alguna ayudita ?