Quite new at this XML stuff

[Guest FirefoxRocks]

From what I learn in the XML tutorial, it should be this, right?

<fr:root xmlns:fr="http://example.net"><fr:element1>some data</fr:element1><fr:element2>some more data</fr:element2></fr:root>

is the same as:

<fr:root xmlns:fr="http://example.net"><element1>some data</element1><element2>some more data</element2></fr:root>

Is that right? Or do I have to declare the name space in each of the child elements?

[boen_robot]

You are only "declaring" the namespace once. You're then only "reffering to" or otherwise "placing certain elements in" or simply said "use" that namespace.You declare a namespace with

xmlns:fr="http://example.net"

and you use that namespace by prefixing all elements in it with the prefix you specified when declaring it.If you do not specify a prefix, then the element you declare it on (if it is without a prefix) and all of it's descendants without a prefix will be in that namespace.So,

<fr:root xmlns:fr="http://example.net"><fr:element1>some data</fr:element1><fr:element2>some more data</fr:element2></fr:root>

is equivalent to

<root xmlns="http://example.net"><element1>some data</element1><element2>some more data</element2></root>

While

<fr:root xmlns:fr="http://example.net"><element1>some data</element1><element2>some more data</element2></fr:root>

is equivalent to

<root xmlns="http://example.net" xmlns:fr=""><fr:element1>some data</fr:element1><fr:element2>some more data</fr:element2></root>

[Guest FirefoxRocks]

So even if the parent/ancestor element refers to the namespace, the child elements don't inherit the name space?So are you saying that:

<fr:root xmlns:fr="http://example.net"><fr:element /></fr:root>

is not the same as:

<fr:root xmlns:fr="http://example.net"><element /></fr:root>

I seriously don't want to make this huge mistake creating an XML document and then change all of the element names.

[boen_robot]

Yes. That is absolutely correct.