Scraping dynamic ajax content with CasperJS

casper_dynamic.js

var fs = require('fs'),
	casper = require('casper').create({
  		verbose: true,
  		logLevel: "debug",
  		pageSettings: {
    		userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.21 (KHTML, like Gecko) Chrome/25.0.1349.2 Safari/537.21'
  		},
  		clientScripts:  ['jquery.min.js']
	});

casper.start('http://www.infibeam.com/Books/info/jk-rowling/harry-potter-prisoner-azkaban/9781408810569.html');

casper.on('load.finished', function(status) {
	console.log("load.finished");
	//casper.debugHTML('.marketplaceTablePriceSpan',false);
	
	console.log('Starting evaluate...');
    var data = casper.evaluate(function() {
		return [].map.call(document.querySelectorAll(".marketplaceTablePriceSpan"), function(text) {
            return text.nodeValue();
        });
    });
    console.log(data);
    //console.log("Done evaluate... count: " + nodes.length);
    //casper.exit();
});


casper.run();