[development] Howto: Override $node_url in theme

[nan_wich]

	My module implements template_preprocess_hook, but when it fires, the $variables['node_url'] is not set yet. I have gone through the themong guide and tried just about every preprocess hook there is and none of them has that variable set when I get control.   It is set in theme.inc in template_preprocess_node, without regard as to whether or not it is already set. I even tried mymodule_preprocess_node, and it is still not set there.   The problem may be because my module's weight is -2 due to a timing problem with the user module. So I am probably getting called before node.module too.   So how can I change that value?   -- Nancy E. Wichmann, PMP Injustice anywhere is a threat to justice everywhere. -- Dr. Martin L. King, Jr.