javascript onclick cancel focus

Question

i make return confirm in from action post method.. Code is working but i need to focus Cancel when confirm is come. But Always ok is focused. How i solve that issue

my code is below..

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<script type="text/javascript">
function confirmation() {
var consumption = document.getElementById("consumption").value;
var texthere1 = document.getElementById("texthere1").value;
var line = document.getElementById("texthere").value;
return confirm("You are about to issue Material <?php echo ltrim($data , "0") ;  ?> from 2100/<?php echo ($data2 ) ;  ?> To a Dying STO " + texthere1 + " At line " + line + " of " + consumption + " KG. Are You Sure ?")   ;  
return false;   
}
</script>
<form action="a.php" method="post">
<input name="Submit" type="submit" value="Submit" onclick="return confirmation()">
</form>

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Answer 1

When confirm is come using this

document.getElementById('id').blur();

Answer 2

I think there is no possibility to do that, see this similar post: JavaScript: How to select "Cancel" by default in confirm box?.