CasperJS script to check data usage of SimplyTel mobile phone contract

simplytel.js

// Usage: casperjs simplytel.js <login> <password>

var casper = require('casper').create({
	verbose: false,
	logLevel: "info",
	exitOnError: true
});

if (!casper.cli.has(0) || !casper.cli.has(1)) {
	casper.echo("\nUsage: casperjs simplytel.js <login> <password>").exit();
};

var login = casper.cli.get(0);
var password = casper.cli.get(1);

casper.start("https://service.simplytel.de/mytariff/invoice/showGprsDataUsage");

casper.then(function() {
	this.fillSelectors('#loginAction', {
		'input[id="UserLoginType_alias"]': login,
		'input[id="UserLoginType_password"]': password
	}, true);
});

casper.then(function() {
	casper.waitForSelector('div.actualRatio',
		function() {
		    casper.echo("Included:  " + casper.getElementInfo("#currentMonth table tbody tr:nth-child(1) td:nth-child(3) b").text);
		    casper.echo("Available: " + casper.getElementInfo("#currentMonth table tbody tr:nth-child(3) td:nth-child(3) b").text);
		    casper.echo("Used:      " + casper.getElementInfo("#currentMonth table tbody tr:nth-child(4) td:nth-child(3) b").text);
		},
		function() {
			casper.echo("error");
			casper.echo(login + "/" + password);
		},
		10000
	);
});

casper.run();