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}else if(keyCode==13 ){
document.all('btnbcr').focus();
}
<form name="form1" id="form1">
<input type="text" name="barcode" value="" onkeydown="keyDown(event);">
<input type="submit" name="submit">
</form>
<script language="javascript">
document.onkeydown = function keyDown(e){
if (!e) var e = window.event
if (e.keyCode) keyCode = e.keyCode;
else if (e.which) keyCode = e.which;
var txtInput = document.getElementById("barcode");
if(keyCode==123 ){
txtInput.focus();
}else if(keyCode==13 ){
document.all('form1').submit();
}
}
</script>