How to get ErrorCode value using jQuery from bellow SPServices xml response:
<Results xmlns="http://schemas.microsoft.com/sharepoint/soap/">
<Result ID="1,Update">
<ErrorCode>0x00000000</ErrorCode>
<z:row ows_ID="4" ows_Title="Title"
ows_Modified="2003-06-19 20:31:21"
ows_Created="2003-06-18 10:15:58"
ows_Author="3;#User1_Display_Name"
ows_Editor="7;#User2_Display_Name" ows_owshiddenversion="3"
ows_Attachments="-1"
ows__ModerationStatus="0" ows_LinkTitleNoMenu="Title"
ows_LinkTitle="Title"
ows_SelectTitle="4" ows_Order="400.000000000000"
ows_GUID="{4962F024-BBA5-4A0B-9EC1-641B731ABFED}"
ows_DateColumn="2003-09-04 00:00:00"
ows_NumberColumn="791.00000000000000"
xmlns:z="#RowsetSchema" />
</Result>
<Result ID="2,Update">
<ErrorCode>0x00000000</ErrorCode>
<z:row ows_ID="6" ows_Title="Title"
ows_Modified="2003-06-19 20:31:22"
ows_Created="2003-06-18 19:07:14"
ows_Author="2;#User1_Display_Name"
ows_Editor="6;#User2_Display_Name" ows_owshiddenversion="4"
ows_Attachments="0" ows__ModerationStatus="0"
ows_LinkTitleNoMenu="Title"
ows_LinkTitle="Title" ows_SelectTitle="6"
ows_Order="600.000000000000"
ows_GUID="{2E8D2505-98FD-4E3E-BFDA-0C3DEBE483F7}"
ows_DateColumn="2003-06-23 00:00:00"
ows_NumberColumn="9001.00000000000000"
xmlns:z="#RowsetSchema" />
</Result>
</Results>