Bookmarklet which enables select, context menu, and so on.

EnableCopy.js

(function() {
  function Revive (evnt) {
    onEvent = "on" + evnt;
    if(window.addEventListener) {
      window.addEventListener(onEvent, function (e) {
        for (var node = e.originalTarget; node; node = node.parentNode)  {
          [node] = null; 
        }
      }, true); 
      window[onEvent] = null; 
      document[onEvent] = null; 
      if (document.body) { 
        document.body[onEvent] = null; 
      }
    }
  };
  
  var events = [
    "contextmenu",
    "click",
    "mousedown",
    "mouseup",
    "selectstart"
  ];
  for (e in events) {
    Revive(e);
  }
})();