Ext.tree.SelectionModelEnabledOnly = function(){

   Ext.tree.SelectionModelEnabledOnly.superclass.constructor.call(this);

};



Ext.extend(Ext.tree.SelectionModelEnabledOnly, Ext.tree.DefaultSelectionModel, {



    select : function(node){

        if (node.disabled) {

            return node;

        }



        return Ext.tree.SelectionModelEnabledOnly.superclass.select.call(this, node);

    },



    onKeyDown : function(e) {

    }

});