gistfile1.js

var __webkitPointEmulator__ = function (){
  window.WebKitPoint = function(x, y){
    this.x = x;
    this.y = y;
  };
}
var __webkitConvertPointFromNodeToPageEmulator__ = function (){
  window.webkitConvertPointFromNodeToPage = function(element, pos){
    var pos = Element.cumulativeOffset(element);
    return {
      x: pos[0],
      y: pos[1]
    };
  };
};
if(!('WebKitPoint' in window)){
  __webkitPointEmulator__();
}
if(typeof window.WebKitPoint == 'undefined'){
  __webkitPointEmulator__();
}
if(!('webkitConvertPointFromNodeToPage' in window)){
  __webkitConvertPointFromNodeToPageEmulator__();
}
if(typeof window.webkitConvertPointFromNodeToPage == 'undefined'){
  __webkitConvertPointFromNodeToPageEmulator__();
}