title: How to capture the screen after evaluate in casperjs?
body: <p>Here is my code:</p>
  
  <pre><code>var casper = require('casper').create({
      clientScripts: ["jquery.js"]
  });
  var URL = casper.cli.get(0);
  casper.start(URL, function (){
   casper.evaluate(function() {
       $(".tm-price").html("123");
  
  });
  
  });
  casper.then(function(){
  this.capture('nn.png');
  });
  
  casper.run();
  </code></pre>
  
  <p>I wanna to change the ".tm-price"'s html to "123",and then capture the screen.<br/>How ever after run it ,it only capture the screen before I change it,but not after I change it.<br/>What's wrong with my code.Would you please help me?Thank you.</p>