phantomEvaluate.js

 if (status === 'success') {
        //page.render("just loaded.jpg");
        setTimeout(function(){
            page.render("screenshots/web.jpg");
            var num = evaluate(tag);
            console.log(num);
            phantom.exit();
        }, 2500);
    }
    else {
        console.error("Error open page");
    }