this is my html code:
<input id="drugCodeId_focus" name="drugCodeId_focus" type="text" autocomplete="off" role="combobox" aria-haspopup="true" aria-expanded="false" aria-autocomplete="list" aria-owns="drugCodeId_items" aria-activedescendant="drugCodeId_25" aria-describedby="drugCodeId_25" aria-disabled="false">
this is a combobox and after change attribute value of "aria-activedescendant" and "aria-describedby" value of combobox will change. help me for change for expample value "drugCodeId_25" to "drugCodeId_26".