reward users for multiple page views

gistfile1.js

var ptReady = ptReady || [];
ptReady.push(function(){
    PT.event.bind('dom.ready', function(){
        var route, c = PT.cookie.get('_ptroute');
        if (c){
            route = PT.serializer.jsonDecode(c);
        } else {
            route = [];
        }
        if (PT.util.indexOf(route, window.location.pathname) == -1){
            route.push(window.location.pathname);
        }
        if (route.length == 5){
            _ptq.push(['view', 1]);
        }
        if (route.length <= 5){
            PT.cookie.set('_ptroute', PT.serializer.jsonEncode(route));
        }
    });
});