[Proudmore]

<input type="text" name="r1" id="r1_input" onchange="send(this);">

function send(referer) {
	var id= referer.id;
	var value = document.getElementById(id).value;
	nocache = "&nocache=" + Math.random() * 1000000;
	var request = new XMLHttpRequest();
				request.onreadystatechange = function () {
					if (this.readyState === 4) {
						if (this.status === 200) {
							if (this.responseText !== null) {
							}
						}
					}
				}
				request.open("GET", "var"+id +"?"+value+"?"+ nocache, true);
				request.send();
}