xml schema issue

[lexul]

Does anybody know how can i specify in a .xsd file that a certain xml element HAS to possess an attribute with "xmlns" name and a string value? If i try to specify the common way i get an error that says the "xmlns" is not permitted as an attribute name. I just want to specify in the xsd the fact that i want "element1" to have the "xmlns" attribute:

<element1 xmlns="namespac e">value</element1>

Thanks

[gpraghuram]

Hi,
Check this tutorial...
I think it will help u

Thanks
Raghuram

[lexul]

thanks for the tip
my problem could be simplified by asking the following question: how can i specify in a .xsd file that a certain element pertains to a certain namespace(not the namespace specified in "targetNamespac e" namespace)?
In other words how can i specify in a .xsd file that this structure is the only admissible one:
<element1 xmlns="onenames pace">
<childElement xmlns="anothern amespace"/>
<element1>