How to determine if a editable row is edited or not

Hi,
I have a tabular form, where all the fields are editable. Once user edit some field(s) and click 'update' button the page gets submitted. I don't want a user to submit the page unless he/she edit a field. In case the user click the 'Update' button without editing any field, I wan't a alert to come up saying "No field is edited!"
Can anyone tell me how to compare old and new value for an editable field in a tabular form?
Regards,
Antara

wow! quick response!
Thats what I'm sort-of doing in VBscript.
I don't have any problems with Volumeinfo its always there. (in event 4 or 14).
When the machine is a HyperV host there is a added section "component info" and thats where the datatransfered is located for the VMs. so I add both toghether (also works great)
When I run my updated script on machines without any VM it tries to read the node "ComponentInfo" and comes back with a error. (cause its not there)
I keep getting this error (see below) I know the component info is not present but I'm not sure how to have the script check if the object is empty, null, not present, etc... so i can tell the script to skip this section.
Object required: 'bkcaphv(...)'
Script error in line 1783, position 30
...I am working on converting my whole script to Powershell. unfortunatly, its a very long script (3000+lines) so its going to take a while. for the moment i'm stuck working in VB.
Anthony Cartier-Info

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