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javascript time counters for text changes

by abubelinha

HTML

<span id="titulo">counter</span>

JavaScript

var time = 0,
    elapsed = '0.0';
var inicio=new Date().getTime();

window.setInterval(function()
{
    time += 100;

    elapsed = Math.floor(time / 100) / 10;
    if(Math.round(elapsed) == elapsed) { elapsed += '.0'; }

    document.title = elapsed;
    var curtime=new Date().getTime();
    document.getElementById("titulo").textContent=elapsed + ' vs. ' + (curtime-inicio);

}, 100);