Sans jQuery

sans-jquery

document.addEventListener("DOMContentLoaded", start);

Array.prototype.slice.call(document.getElementsByTagName("p"));

function Each(obj, fn) {
	if (obj.length) for (var i = 0, ol = obj.length, v = obj[0]; i < ol && fn(v, i) !== false; v = obj[++i]);
	else for (var p in obj) if (fn(obj[p], p) === false) break;
};

document.getElementById("clickme").addEventListener("click", function(e) {
	console.log("you clicked " + e.target);
	e.preventDefault();
});

var r = new XMLHttpRequest(); 
r.open("POST", "webservice", true);
r.onreadystatechange = function () {
	if (r.readyState != 4 || r.status != 200) return; 
	console.log(r.responseText);
};
r.send("a=1&b=2&c=3");