Importing Cookie directory from javascript.git

-Subproject commit 4c4d02ff6f1e226778ee969fdaa4ec33b716deaa

+/**
+ * A Singleton class to create, read and delete cookies
+ * @author Chris Boden
+ * @version 0.3
+ */
+Cookie = new function() {
+    /**
+     * Create a cookie for current domain
+     * @param {String} name The name of the cookie by reference
+     * @param {String} value The value of the cookie to be stored
+     * @param {Integer} days The Number of days until the cookie expires
+     * @returns null
+     */
+    this.create = function(name, value, days) {
+        var expires = '';
+        if (days) {
+            var date = new Date();
+            date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
+            expires = '; expires= ' + date.toGMTString();
+        }
+
+        document.cookie = name + '=' + value + expires + '; path=/';
+    }
+
+    /**
+     * Get the value of a cookie for this domain
+     * @param {String} name The name of the cookie
+     * @returns A string if cookie exists null if not
+     */
+    this.read = function read(name) {
+        var nameEQ = name + '=';
+        var ca     = document.cookie.split(';');
+        for(var i = 0; i < ca.length; i++) {
+            var c = ca[i];
+            while (c.charAt(0)==' ') {
+                c = c.substring(1,c.length);
+            }
+
+            if (c.indexOf(nameEQ) == 0) {
+                return c.substring(nameEQ.length,c.length);
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * Erases a cookie from the domain
+     * @param {String} name Name of the cookie to erase
+     * @returns null
+     */
+    this.erase = function(name) {
+        Cookie.create(name, '', -1);
+    }
+}

+A simple class to creat, read and erase cookies