【text_input】
<html>
<head>
<script type="text/javascript">
function upperMe(field) {
field.value = field.value.toUpperCase();
}
</script>
</head>
<body>
<form onsubmit="window.focus(); return false">
Lowercase letters:
<input type="text" name="converter" value="sample" onchange="upperMe(this)" />
</form>
</body>
</html>
