用jquery实现输入框消失文字

用jquery实现输入框消失文字。

Java代码

<html>
<head>
<title>用jquery实现输入框消失文字</title>
<style type=”text/css”>
.default {
font-weight: bold;
color: #787878;
}
</style>
<script type=”text/javascript” src=”/js/jquery/jquery-1.8.1.min.js”></script>
<script type=”text/javascript”>
$(document).ready(function() {
$(“#keywords”).focus(function () {
var $this = $(this);
if ($this.val() == $this[0].defaultValue) {
$this.css(“color”,”#0cf”).val(“”);
}
}).blur(function () {
var $this = $(this);
if ($this.val() == ”") {
$this.removeAttr(“style”).val($this[0].defaultValue);
}
})//keywords
});
</script>
</head>
<body>
<div id=”content”>
<form method=”POST” id=”user” action=”">
User Name:<input type=”text” id=”keywords” class=”default” name=”keywords” value=”Enter your name”/><br/>
PassWord:<input type=”text” id=”password” class=”default” name=”password” value=”Enter your password”/>
<input type=”submit” name=”sub” value=”login”/>
</form>
</div>
</body>
</html>

<html>
<head>
    <title>用jquery实现输入框消失文字</title>
    <style type="text/css">
        .default {
            font-weight: bold;
            color: #787878;
        }
    </style>
    <script type="text/javascript" src="/js/jquery/jquery-1.8.1.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function() {
            $("#keywords").focus(function () {
                var $this = $(this);
                if ($this.val() == $this[0].defaultValue) {
                    $this.css("color","#0cf").val("");
                }
            }).blur(function () {
                var $this = $(this);
                if ($this.val() == "") {
                    $this.removeAttr("style").val($this[0].defaultValue);
                }
            })//keywords
        });
    </script>
</head>
<body>
<div id="content">
    <form method="POST" id="user" action="">
        User Name:<input type="text" id="keywords" name="keywords" value="Enter your name"/><br/>
        PassWord:<input type="text" id="password" name="password" value="Enter your password"/>
        <input type="submit" name="sub" value="login"/>
    </form>
</div>
</body>
</html>