changeOnClickString.js

var casper = require('casper').create();

casper.on("remote.message", function(msg){
	this.echo("remote.msg: " + msg);
});

casper.on("resource.error", function(resourceError){
	this.echo("res.err: " + JSON.stringify(resourceError));
});

casper
	.start()
	.thenEvaluate(function(){
		window.that = function(el, num){
			console.log("num received: "+num);
		};
		document.write('<a title="Show 100 items per page" onclick="that(this, 100)" href="javascript:void(0);">100</a>');
	})
	.then(function() {
		this.echo('finished');
		this.capture('test31_Step1.png');
	})
	.thenClick("a")
	.thenEvaluate(function(num){
		num = ""+num;
		var a = document.querySelector('a[title="Show 100 items per page"]');
		a.innerHTML = num;
		a.title = a.title.replace("100", num);
		a.setAttribute("onclick", a.getAttribute("onclick").replace("100", num));
		console.log(a.title);
	}, 200)
	.thenClick("a")
	.then(function() {
		this.echo('finished');
		this.capture('test31_Step2.png');
	})
	.run();