Peter Lubbers - Pro HTML 5 Programming

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CHAPTER 8 ■ USING THE HTML5 WEB WORKERS API
var imageURL = "example2.png";
var image;
var ctx;
var workers = [];
function log(s) {
var logOutput = document.getElementById("logOutput");
logOutput.innerHTML = s + "" + logOutput.innerHTML;
}
function setRunningState(p) {
// while running, the stop button is enabled and the start button is not
document.getElementById("startBlurButton").disabled = p;
document.getElementById("stopButton").disabled = !p;
}
function initWorker(src) {
var worker = new Worker(src);
worker.addEventListener("message", messageHandler, true);
worker.addEventListener("error", errorHandler, true);
return worker;
}
function startBlur() {
var workerCount = parseInt(document.getElementById("workerCount").value);
var width = image.width/workerCount;
}
for (var i=0; i