Javascript String unescape()

/*//from  w ww  . ja v a 2 s . c om
 libs/string-helpers.js
 
 Collection of helper functions
 
*/


/**
 * String.unescape()
 *
 * Unescapes string functions, coping with html or non-html
 *
 * Useful for displaying HTML that has been encoded for JSON transmit
*/
String.prototype.unescape = function() {
  var node = document.createElement('div');
  node.innerHTML = this;
  if('undefined' == typeof(node.innerText)) {
    return node.textContent; // FF
  }
  return node.innerText; // IE
}