М.б. это????
<input id="Id_IN_Kalib_Pout" class="require">
<input id="Id_kalib_Pout" type="button" value="Калибровать">
<table>
<tr id="id_test"></tr>
</table>
<script>
var el = document.getElementById("Id_IN_Kalib_Pout");
alert([el.tagName,el.type]);
el = document.getElementById("Id_kalib_Pout");
alert([el.tagName,el.type]);
el = document.getElementById("id_test");
alert([el.tagName,el.type]);
</script>
