<html>
<head>
<title>Forms</title>
<script language="JavaScript">
<!-- hide me
// a simple function that changes a text field
function monkeyLove()
{
var who_it_is = window.document.text_entry_form.monkey_love.value;
who_it_is = 'The monkey loves ' + who_it_is;
window.document.text_entry_form.monkey_love.value = who_it_is;
}
</script>
</head>
<body bgcolor="#ffffff">
<form name="text_entry_form" onsubmit="monkeyLove(); return false;">
<b>Who does the monkey love: </b><input name="monkey_love" size="30" type="text" value="default">
</form>
</body>
</html>
问题:
return false;在这里起什么作用?