radio button focus not working, kind of.

hi trying to get a bot check radio button to focus on a submit check, if not selected. why would this not work in a function but work fine running on it’s own during the script?

so it does not work like this:

`function checkf() {

if (!document.getElementById(“names”).value) {
alert(‘Please enter a value for name’);
document.getElementById(“names”).focus();
var error=1;
} else if (!document.getElementById(“tel”).value) {
alert(‘Please enter a value for contact number’);
document.getElementById(“tel”).focus();
var error=1;
} else if (!document.getElementById(“emails”).value) {
alert(‘Please enter a value for email’);
document.getElementById(“emails”).focus();
var error=1;
} else if (!document.getElementById(‘BotCheck’).checked) {
alert(‘Please Click Bot Check’);
**document.getElementById(‘BotCheck’).focus();**
var error=1;
}
if (!error) document.book.submit();

}`

but iot work fine like this:

`<script type=”text/javascript”>
document.getElementById(‘BotCheck’).focus();
</script>`

_weird.._

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