I have this code :
我有这个代码：
<html xmlns="https://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script>
$(function() {
$(".button").click(function() {
var dataString = "message= "+$('#message').val();
$.ajax({
type: "POST",
url: "calculate.php",
data: dataString,
success: function(data) {
$('#result').append("<div id='message'> "+ data +" </div>");
}
});
return false;
});
});
</script>
</head>
<body>
<div class="content">
<?php
displayForm();
function displayForm() {
?><div id="result"></div>
<div class="content2">
<form action="practicalTask.php" method="post">
<div class="firstLine">
<label for="message"> Message </label> <div class="time"> Time </div>
</div>
<div class="secondLine">
<input type="text" name="message" id="message" onclick="this.value='';" onblur="this.value=!this.value?' Please enter a message...':this.value;" value=" Please enter a message..." />pr
<input type="submit" name="submitButton" class="button" value="OK" />
</div>
</form>
<br/>
</div>
<div id="result"></div>
</div>
<?php } ?>
</body>
</html>
<html xmlns="htt
