<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript" src="jquery-1.11.0.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("input[name=textfield1]").keyup(function(event){
regexp = /[a-z0-9]|[ \[\]{}()<>?|`~!@#$%^&*-_+=,.;:\"'\\]/g;
v = $(this).val();
if( regexp.test(v) ) {
alert("한글만입력하세요");
$(this).val(v.replace(regexp,''));
}
});
});
</script>
</head>
<body>
<h1>한글만입력</h1>
<h2></h2>
<h3><input type="text" name="textfield1"/></h3>
</body>
</html>
