Change not saving in XML file

[Bruce432213]

Hi, the html file is showing that it has changed the value in the XML file, but when I open the XML file nothing has changed.

    var status=xmlDoc.getElementsByTagName("Seats");
    alert(status[2].getElementsByTagName("Status")[0].childNodes[0].nodeValue); //Unbooked
    status[2].getElementsByTagName("Status")[0].childNodes[0].nodeValue = "Booked"; 
    alert(status[2].getElementsByTagName("Status")[0].childNodes[0].nodeValue); //Booked

So, it changes from "Unbooked" to "Booked" but it doesn't change in the XML file. What's going on?

[justsomeguy]

Changing a data structure in Javascript does not change files on disk.  Javascript running in a browser does not have permission to write to any files on your computer, thankfully.  If you want to change files on the server you need to use a server-side language like PHP for that.