<html>
<body>
<script>
var str = "The rain in Spain stays mainly in the plain";
var patt1 = new RegExp("ain", "g");
for(i = 0; i < 4; i++)
{
patt1.test(str);
document.write(RegExp.lastMatch);
document.write(" found. index now at: " + patt1.lastIndex);
document.write("<br>");
}
</script>
</body>
</html>