<html>
<body>
<script type="text/javascript">
var str1="noonday";
var str2="possibly yesterday.";
var patt1=/\B../;
var patt2=/y\B./;
document.write(str1.match(patt1) + "<br>");
document.write(str2.match(patt2) + "<br>");
</script>
</body>
</html>