cc.Class({
    extends: cc.Component,

    properties: {
        targetNode: {
           default: null,        // The default value will be used only when the component attaching
                                 // to a node for the first time
           type: cc.Node, // optional, default is typeof default
           serializable: true,   // optional, default is true
        }
    },
    Open()
    {
        this.targetNode.active = true;
    }
});