USE of glide Ajax to auto populate the details of ci on incident but not working

[Anjali yadav1]

SCRIPT INCLUDE---

CLIENT SCRIPT--- on change ci field

var ga = new GlideAjax('ourInccallerDetails');

   ga.addParam('sysparm_name','getOurIncCiDetails');

   ga.addParam('sysparm_ourCi',g_form.getValue('u_configuration_item'));

   ga.getXMLAnswer(getCIdetails);

   function getCIdetails(Ci)

   {

    var CiObj=JSON.parse(Ci);

    g_form.setValue('u_asset_tag',CiObj.tag);

    g_form.setValue('u_serial_number',CiObj.serial);

   }

pls correct my error

[Zach Koch]

I would start by troubleshooting and see what data you have on the call. Can you confirm you are passing the correct info in the Ajax call, then confirm a GlideRecord is being found in the Script Include query, then confirm the Obj you are about to return has the correct data, then on the client side confirm what is being returned?