Update std.js

lib/std.js

@@ -59,11 +59,11 @@ global.sleep = function(ms, callback) {
             setTimeout(callback, ms);
         }
     }
-}
+};
 
 global.CHR = function(ord) {
     return String.fromCharCode(ord);
-}
+};
 
 /////////////////////////////////////////////////////////////////////////////////
 // Private APIs / Utility functions
@@ -104,6 +104,57 @@ exports.CreateObject = function(progId, serverName, callback) {
 
 /////////////////////////////////////////////////////////////////////////////////
 
-exports.VERSIONINFO = "Standard Lib (std.js) version 0.2";
+var stdEvent = function(eventName) {
+    this.bubbles = false;   // Not supported
+    this.cancelable = false;   // Not supported
+    this.composed = false;   // Not supported
+    this.currentTarget = null;   // Not supported
+    this.defaultPrevented = false;
+    this.eventPhase = null;
+    this.isTrusted = true;   // Not supported
+    this.timeStamp = new Date();
+
+    this.eventName = eventName;
+    this.target = null;
+
+    // Not supported
+    this.composedPath = function() {
+        return null;   
+    };
+
+    this.preventDefault = function() {
+        this.defaultPrevented = true;
+    };
+
+    // Not supported
+    this.stopImmediatePropagation = function() {
+        return null;   
+    };
+
+    // Not supported
+    this.setPropagation = function() {
+        return null;   
+    };
+};
+
+var stdEventableObject = function() {
+    this.dispatchEvent = function(event) {
+        event.target = this;
+        if(eventName in this) this['on' + event.eventName](event);
+    };
+
+    this.addEventListener = function(eventName, fn) {
+        if (typeof(fn) == "function") {
+            this['on' + eventName] = fn;
+        } else {
+            throw new TypeError("EventListener must be a function");
+        }
+    };
+};
+
+exports.VERSIONINFO = "Standard Lib (std.js) version 0.3";
 exports.global = global;
 exports.require = global.require;
+
+exports.Event = stdEvent;
+exports.EventableObject = stdEventableObject;