Iterative approach to walking a DOM tree in javascript

visit-nodes-iterative.js

function visit_nodes_iterative(node) {
    node = node || document;

    do
    {
        /* Do something with node here */

        node = node.firstChild || node.nextSibling || function() {
            while ((node = node.parentNode) && !node.nextSibling);
            return node ? node.nextSibling : null;
        }();
    }
    while (node);
}