dtree openTo (test)

//original: http://pastebin.com/Wy81h3Mm
//discussion here: http://wordpress.org/support/topic/plugin-wp-dtree-open-to-selection?replies=11#post-2604841
wpdTree.prototype.openTo = function(nId, bSelect, bFirst){
    for (var n=0; n<this.adtNodes.length; n++){
        if(this.adtNodes[n].id == nId){
            nId=n;
            var cn=this.adtNodes[nId];
            if(cn.pid==this.root.id || !cn._p) return;
            cn._io = true;
            cn._is = bSelect;
            if(this.completed && cn._hc) this.nodeStatus(true, cn._ai, cn._ls);
            if(this.completed && bSelect) this.s(cn._ai);
            else if(bSelect) this._sn=cn._ai;
            this.openTo(cn._p._ai, false, true);
        }
    }
};