Bookmarklet to estimate reading time of a page

beautified.js

javascript:(function () {
    function getTextNodesIn(element) {
        var wordcount = 0,
            whitespace = /^\s*$/;

        function getTextNode(node) {
            // type 3 is a textnode
            if (node.nodeType == 3) {
                // We skip text nodes that are only whitespace
                if (!whitespace.test(node.nodeValue)) {
                    wordcount += node.nodeValue.split(" ").length;
                }
            // this isn't a text node, so test each childnode
            } else {
                for (var i = 0, len = node.childNodes.length; i < len; ++i) {
                    getTextNode(node.childNodes[i]);
                }
            }
        }
      
        getTextNode(element);
        return wordcount;
    }
  	
    alert("Estimated reading time: " + (getTextNodesIn(document.body) / 250) + " minutes")
}());

minified.js

javascript:(function(){function getTextNodesIn(c){var d=0,b=/^\s*$/;function a(g){if(g.nodeType==3){if(!b.test(g.nodeValue)){d+=g.nodeValue.split(" ").length}}else{for(var f=0,e=g.childNodes.length;f<e;++f){a(g.childNodes[f])}}}a(c);return d}alert("Estimated reading time: "+(getTextNodesIn(document.body)/250)+" minutes")}());

no-recursion.js

javascript:(function () {
  function getTextNodesIn(element) {
      var wordcount = 0,
          whitespace = /^\s*$/,
          nodelist = [element];
      
      while (nodelist.length > 0) {
          var node = nodelist.pop();
          if (node.nodeType == 3) {
              // We skip text nodes that are only whitespace
              if (!whitespace.test(node.nodeValue)) {
                  wordcount += node.nodeValue.split(" ").length;
              }
              // this isn't a text node, so test each childnode
          } else {
              for (var i = 0, len = node.childNodes.length; i < len; ++i) {
                  nodelist.push(node.childNodes[i]);
              }
          }
      }
   
      return wordcount;
  }
    	
  alert("Estimated reading time: " + (getTextNodesIn(document.body) / 250) + " minutes");
}());

Thanks for this -- mind if I use this code in another project to be put on GitHub?