Something I threw together to watch a youtube vid on the treadmill while doing the program

couch25k

var messages = [
    {
        html: 'Warmup walking',
        seconds: 60 * 5
    }    
];
var total = messages[0].seconds;

function addItem(html, seconds) {
    messages.push({html:html, seconds: seconds});
    total += seconds;
}

var wasRunning = false;

while (total < 60 * 20) {
    addItem.apply(0, wasRunning ? ['Walk', 90] : ['Run', 60]);
    wasRunning = !wasRunning;
}


var newWindow = window.open('about:blank','couch',"directories=0,titlebar=0,toolbar=0,location=0,status=0,menubar=0,scrollbars=0,resizable=1,width=400,height=350");
var newBody = newWindow.document.body;
newBody.innerHTML = '<span id=m></span> <span id=e></span>'
var m = newBody.firstChild;
var e = newBody.lastChild;

var startedTotal = new Date();
var startedSet = new Date();
newWindow.setInterval(function() {
    var elapsed = (new Date() - startedTotal) / 1000;
    e.innerHTML = 
        ('00' + ~~(elapsed / 60)).substr(-2) + 
            ':' + 
        ('00' + ~~(elapsed % 60)).substr(-2);
    var elapsed = (new Date() - startedSet) / 1000;
    e.innerHTML += ' <strong>' +
        ('00' + ~~(elapsed / 60)).substr(-2) + 
            ':' + 
        ('00' + ~~(elapsed % 60)).substr(-2);

}, 1000);

var message;
function nextMessage(index) {
    startedSet = new Date();
    hey();
    if (index < messages.length) {        
        m.innerHTML = messages[index].html;
        newWindow.setTimeout(function() {
            nextMessage(index + 1);
        }, messages[index].seconds * 1000);
    } else {
        m.innerHTML = 'Done!';
    }
}

m.innerHTML = 'Starting when timers reach 5';
newWindow.setTimeout(function() {    
    startedTotal = new Date();
    startedSet = new Date();
    nextMessage(0);
}, 5000);


function hey() {
    var count = 50;
    newWindow.setTimeout(function changeColors() {
        newBody.style.background = count % 2 ? 'red' : 'white';
        if (count--) newWindow.setTimeout(changeColors, 10)
    });
    n = 50
    for (i = 10; i > 0; i--) {
        for (j = n; j > 0; j--) {
            newWindow.moveBy(0, i);
            newWindow.moveBy(i, 0);
            newWindow.moveBy(0, -i);
            newWindow.moveBy(-i, 0);
        }
    }
}