YUI().use("app", function(Y){

    // create model(s)
    Y.Page = Y.Base.create("page", Y.Model, [],{},{
        ATTRS: {
            pagename: {},
            content: {}, 
            other: {}
        }
    });
    
    // create view(s)
    Y.PageView = Y.Base.create("pageView", Y.View, [], {
        render: function(){
            var page = this.get("model");
            var name = page.get("pagename");
            var content = page.get("content");
            var other = page.get("other");
            
            this.get("container").setContent("<div class='page "+name+"'><div>Name: "+ name+"</div>"+ unescape(content)+"<div><button>Change to "+other+"</button></div>");
            return this;
        }, 
        events: {
            button: {
                click: "goPage"
            }
        },
        goPage: function(){
           //Y.log(this.get("model").get("pagename"));
            var mod = this.get("model");
            var my = mod.get("pagename")
            var other = mod.get("other");
            var date = new Date();
            
            app.save("/"+other+"/"+other+"/"+date.toLocaleTimeString()+"/"+my);
           
        }
        
    });
    
    // create the app
    
    var app = new Y.App({
        views: {
            one: {
                type: "PageView"
            },
            two: {
                type: "PageView"
            }

        }
    });
 
  
  // Adds a route handler for "/" to show the HelloView.
    app.route('/', function(req) {
        this.showView('one');
    });  

    app.route('/one/:pagename/:content/:other', function(req){
        this.showView('one', {
            model: new Y.Page(req.params)
        });
    });
 
     app.route('/two/:pagename/:content/:other', function(req){
        this.showView('two', {
            model: new Y.Page(req.params)
        });
    });
    
    app.render();
    
    app.save("/one/one/hi there/two");
    

})

Following resources are loaded into result:

  1. yui-min.js

					
				
			
				
					
						
/** YUI App framework demo - simple swap views **/

/** references http://stage.yuilibrary.com/yui/docs/app/app-contributors.html **/
/** http://jsfiddle.net/triptych/4jD97/ **/

.page {
    background-color: slategrey;
    padding: 32px;
}

.one {
    border: 1px solid green;
    color: white;
}

.two {
    border: 2px solid brown;
    color: blue;
}

.page div {
     font-weight: bold;   
}