Load discussion items from Discussions List

getDiscussions.js

function getDiscussions(listTitle,OnItemsLoaded,OnError)
{
    var context = new SP.ClientContext.get_current();
    var web = context.get_web();
 
    var list = web.get_lists().getByTitle(listTitle);
    context.load(list);
   
    var qry = SP.CamlQuery.createAllFoldersQuery();
    var discussionItems = list.getItems(qry);
    context.load(discussionItems);
    
    context.executeQueryAsync(
        function() {
          OnItemsLoaded(discussionItems);           
        },
        OnError
    );
}