Use containerMenu as a base for HintMenu instead of regular menu

Change-Id: Ic1ed2e216a9c61aabf1f1cac41972b1a4e96a91a
diff --git a/dev/js/src/container/containeritem.js b/dev/js/src/container/containeritem.js
index a9a209b..6d0ef59 100644
--- a/dev/js/src/container/containeritem.js
+++ b/dev/js/src/container/containeritem.js
@@ -31,9 +31,11 @@
 
   /**
    * Get/create the document element of the container item. Can be overwritten. Standard class: li
+   * If you wish to change the textNode please overwrite the content function instead.
    */
   element : function () {
-    // already defined
+    //Call Order: First this class is created and then upgraded To whatever object is passed to container
+    //Then container calls first element() and then container()
     if (this._el !== undefined) return this._el;
     
     // Create list item
@@ -47,7 +49,32 @@
   },
 
   /**
-   * Expected to be overwritten
+   * Get/create a TextNode with text "content". If content is left blank it gets set to this.defaultTextValue,
+   * or the empty string if it does not exists
+   * @param {String} content String to which to set the text
+   * @returns textNode with content or undefined
+   */
+  content : function (content) {
+    var newText; //set textNode to this
+    if (arguments.length === 1) { //new value!
+      newText = content;
+    } else { //use default
+      if (this.defaultTextValue === undefined) { //default default is ""
+        this.defaultTextValue = "";
+      }
+      newText = this.defaultTextValue;
+    };
+    if (this._content === undefined) { //no Element until now
+      this._content = document.createTextNode(newText); //create one
+      this.element().appendChild(this._content);
+    } else { //just change it
+      this._content.nodeValue = newText; // use nodeValue instead of _innerHTML
+    };
+    return this._content;
+  },
+
+  /**
+   * Expected to be overwritten. Default returns true always.
    * @returns whether the item is currently an option to be selected, or if it should just be skipped
    */
   isSelectable : function () {