var aoArticleGroups = {

	    handleSuccess:function(o)
	    {
	        this.processResult(o);
	    },

		handleFailure:function(o)
		{

	    },

	    processResult:function(o)
	    {
	        groups = o.responseText.parseJSON();
	        treeInit( groups );
	    },

	    startRequest:function()
	    {
	    	YAHOO.util.Connect.asyncRequest( 'POST', '/ajax/ajax.php', aoArticleGroupsCallback, "action=getArticleGroupsTree" );
	    }

	};

	/*
	 * Define the callback object for success and failure
	 * handlers as well as object scope.
	 */
	var aoArticleGroupsCallback =
	{
	    success:aoArticleGroups.handleSuccess,
	    failure:aoArticleGroups.handleFailure,
	    scope: aoArticleGroups
	};