gistfile1.js

//l.sauer 2011, public domain
//returns a hash table with the word as index and frequency as value; good for svg / canvas -plotting or other experiments
//[:punct:]	Punctuation symbols . , " ' ? ! ; : # $ % & ( ) * + - / < > = @ [ ] \ ^ _ { } | ~
var wordcnt = function(id){
  var hist = {}, words = document.getElementById(id).innerText.split(/[\s*\.*\,\;\+?\#\|:\-\/\\\[\]\(\)\{\}$%&0-9*]/)
  for(var i in  words)
    if(words[i].length >1 )
      hist[words[i]] ? hist[words[i]]+=1 : hist[words[i]]=1;
  return hist;
};
wordcnt('res') //id of the Element, e.g. res is the div containing the results of a google search

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//Solution in one continuous line of code:
text.split(/[\s*\.*\,\;\+?\#\|:\-\/\\\[\]\(\)\{\}$%&0-9*]/).map( function(k,v){ words||(words={});words[k]++||(words[k]=1); } )