javascript doc - missing links

["info@agentur-m3.de" <in...@agentur-m3.de>]

In

https://cwiki.apache.org/confluence/display/OFBIZ/FAQ+-+Tips+-+Tricks+-+Cookbook+-+HowTo

some links to javascript and ajax

e.g. in section "Ajax - Javascript - Json"
 "An easy way to get a data structure from server to Javascript in
client browser"
and
"Integrate OFBiz with Yui-Ext"

seem to be not valid anymore.

Did the articles moved somewhere else?

Is there any further documentation on javascript/ajax?

I would like to choose a product-list in ecommerce
via javascript/ajax and could not find an
example for this.

Thank you for help!