select tag object with dhtmlxCombo

I have native select tag with id as “abcFrm” defined in form. Then I create dhtmlXCombo from select control in Javascript as

abcFrmInCombo = dhtmlXComboFromSelect(“abcFrm”);

At this point, if I try to obtain the reference to the object with id “abcFrm” and display its type;

var abc= document.getElementById(“abcFrm”);

alert(“type=” + abc.type );

I got an “Object required” error. Can I re-claim the object after I convert the native select tag into a combo box?