Delphi Project: Manipulate XML Files, I Need Two Little Functions.

Hello, I need a Delphi expert that show me how to manipulate XML files. I need two little functions, they should run on Delphi 2010. Function 1 details: There are 11 text fields on the form, as follow: 1. Name 2. Description 3. SampleRate 4. Width 5. Height 6. AudioEncoder 7. VideoEncoder 8. Channels 9. FrameRate 10. AudioBitrate 11. VideoBitrate There is a "Save" button on the form, when it is pressed, suppose the FormatInfo ID = "1005" (this ID is unique), the program would open two existing XML files "[login to view URL]" and "[login to view URL]", then update the element values of the corresponding tags on two XML files according to the 11 text strings entered by users, and save the files. Please check the attached "[login to view URL]" and "[login to view URL]" files. For [login to view URL], just update <Name> and <Description> tags. For [login to view URL], it needs to update all 11 tags. Function 2 details: There is a "Restore" button on the same form, when it is pressed, suppose the FormatInfo ID = "1005", the program would read the element values of the same 11 tags from an existing XML file named "[login to view URL]", then update the values back to the corresponding text fields on the form, then close the XML file. Please check the attached "[login to view URL]" file. Thanks. Raymond