JavaScript: Globals object.

globals.js

window.Globals = (function() {
  var result = {};
  
  $("meta[name^='global:']").each(function() {
    var tag = $(this);
    var name = tag.attr("name").substring(7);
    var content = tag.attr("content");
    
    if (/^json:/.test(name)) {
      name = name.substring(5);
      content = JSON.parse(content);
    }
    result[name] = content;
  });
  
  return result;
})();