Simple hash example
See http://tweakers.net/nieuws/110731/miljoenen-accountgegevens-van-minecraft-community-lifeboat-zijn-buitgemaakt.html?showReaction=8485643#r_8485643
by Rob Janssen
HTML
<input type="text" id="password" value="Secret01" onkeyup="showResult()">
<p id="output"></p>
JavaScript
function showResult() {
var input = document.getElementById('password').value;
document.getElementById('output').innerText = 'Hash: ' + RobIIIHash(input);
}
function RobIIIHash(value) {
var sum = 0;
for (var i = 0; i < value.length; i++)
sum += value.charCodeAt(i);
return sum % 16;
}
window.onload = showResult();