我想使用 HTML 和 jQuery 制作一个水印文本框,但问题是当我转到另一个页面并再次返回水印文本框页面时,水印文本以普通文本显示。
下面是我的 jQuery 代码:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js">
</script>
<script type="text/javascript">
(function ($) {
$.fn.extend({
inputWatermark: function () {
return this.each(function () {
// retrieve the value of the ‘placeholder’ attribute
var watermarkText = $(this).attr('placeholder');
var $this = $(this);
if ($this.val() === '') {
$this.val(watermarkText);
// give the watermark a translucent look
$this.css({ 'opacity': '0.65' });
}
$this.blur(function () {
if ($this.val() === '') {
// If the text is empty put the watermark
// back
$this.val(watermarkText);
// give the watermark a translucent look
$this.css({ 'opacity': '0.65' });
}
});
$this.focus(function () {
if ($this.val() === watermarkText) {
$this.val('');
$this.css({ 'opacity': '1.0' });
}
});
});
}
});
})(jQuery);
</script>
这是我的 HTML 代码:
<body>
<input id="input1" placeholder="Placeholder here..." />
<input id="input2" placeholder="2nd Placeholder" />
<a href="../../back.htm">google</a>
<script type="text/javascript">
$(document).ready(function () {
$(':input').inputWatermark();
});
</script></body>