Untitled

<html>
<head>
<script type = "text/javascript">
function myfunction(){
if ('baobao'.match('([a-z])+')){
alert "that's right";
}
else {
alert "that's wrong"
}
}
</script>
</head>
<body>
<form>
<input type="button" value = "clickhere" onclick="myfunction()" >
</form>
</body>
</html>