// Exports var _package_; var join; // Avoid namespace pollution (function () { // We will insert additional scripts into the section of the HTML document. var head = document.getElementsByTagName('head')[0]; // Load an external script into the document. function include(jsUrl, k) { // Create a tag to load the specified script. // It will have the form var scriptTag = document.createElement('script'); scriptTag.type = 'text/javascript'; scriptTag.src = jsUrl; scriptTag.onload = k; // Add the script to the document, causing it to load and run asynchronously. head.appendChild(scriptTag); }; // Keep track of the packages that have been loaded. var includedPackages = { }; // Call k() after loading the named package from the given url. function requirePackage(name, url, k) { if (includedPackages[name] == true) { // The package has already been processed. if (k != null) { // Proceed immediately. k(); } } else if (includedPackages[name]) { // The package is waiting on its dependencies. if (k != null) { // Ask the package to call us when it is ready. includedPackages[name].push(k); } } else { // The package has not been visited yet, so start processing it. includedPackages[name] = []; if (k != null) { // Ask the package to call us when it is ready. includedPackages[name].push(k); } // Load the script at the given url. // When it runs, if it contains the requested package, evaluation will continue. include(url); } } // Declare a new package and its dependencies. _package_ = function (name, deps, k) { var kprime = join(deps.length, function () { // Run this code when all our dependencies are loaded. // Evaluate the package contents. if (k != null) { k(); } // Notify all packages which depend on us that we're done loading. var clients = includedPackages[name]; includedPackages[name] = true; if (clients && clients != true) { for (var i = 0; i < clients.length; i++) { clients[i](); } } }); // Begin loading dependencies. for (var i = 0; i < deps.length; i++) { // Expand syntactic shortcuts if (typeof(deps[i]) == 'string') { deps[i] = [deps[i]]; } if (deps[i].length == 1) { deps[i].push(deps[i][0]+'.js'); } // General case if (deps[i].length == 2) { requirePackage(deps[i][0], deps[i][1], kprime); } } }; // Returns a continuation which, after it's called n times, invokes the continuation k. join = function (n, k) { if (n <= 0) { // Call the continuation k immediately // (i.e., after the continuation we returned is called zero times) k(); return function () { } } else { // Call the continuation k after the continuation we return is called n times return function () { if (n > 0) { n--; if (n == 0) { k(); } } } } }; })();