I will explain my task in better detail. I have an XML file (on the local drive) that has some parameters. I need to create a GUI so it's easier for users to edit the values of these parameters. So the user can open my GUI that displays the parameters of the XML, and he needs to be able to edit and save the values. I was using JavaScript because I know it fairly well and I thought it would be the easiest way. Also, I need this to run on multiple platforms and JavaScript would enable it to do so.

What would you suggest for me to do?