script walks The DOM from any node and prints any text content

walk-dom.js

function walkDOM(node, cb){
	cb(node);
	node = node.firstChild;
	while(node){
		walkDOM(node, cb);
		node = node.nextSibling;
	}
}
function walkUp(node, cb){
	var parent = node.parentElement;
	while (parent){
		node = parent;
		parent = node.parentElement;
	}
	walkDOM(node, cb)
}
walkUp(document.getElementsByTagName("p")[1], function(node){
	if (node.nodeType === 3 && node.textContent.replace(/^\s+|\s+$/, "")){
		console.log(node.textContent);
	}
});