Input: <input id="short" size=50/><br/>
Factor: <input id="factor" value="8" size=1/><br/>
Output: <input id="long" size=50/>
<script src="/rp/js/lib.js"></script>
<script>
	function slugify(str) {
		var out = "";
		for (var i = 0; i < str.length; i++) {
			out += Array(parseInt($("factor").value)).join(str[i]);
		}
		return out;
	}
	$("short").setAttribute("onkeyup", '$("long").value = slugify($("short").value);');
</script>