I found the solution now.
Spinner doesn't work when <form></form> are inside <table></table>.
<table>
<form>
<input
id="spinner" name="spinner" value="5">
,,,,,,
</form>
</table>
Spinner works when <form></form> are inside <table></table>.
<form>
<table>
<input
id="spinner" name="spinner" value="5">
,,,,,,
</table>