<html>
<head>
<title>
<script>
RegExp()
{
var str="paul ,paula,pualine,paul,puald."
document.GeElementById"demo".innerHTML="Ringo,paula,pualine,pual,Ringo"
}
</script>
</title>
</head>
<body>
<p id=demo>paul ,paula,pualine,paul,puald</p>
str=RegExp()
</body>
</html>