I was just surfing through web and came across a web site.
It showed me some ajax examples. When i saw source of pages,
It looked kind of tricky to me. It used two namespaces called 'b' and 's'.
And each of them were used for some custom tags.
So i validated the page but got lots of error messages (XHTML Strict 1.0).
I just want to know if these custom tags are fine to use?
They look cool to me and might be useful in differentiating,
while building a good AJAX application.
But i don't want to go off the standards.
What do you think?