Question

我想有一个<input> (jsfiddle.net/cT9kg)与dogpile.com 。

更具体地说,<input>应当:

have a predefined text inside it when is focused
that text reappearing when user s input data is deleted and losing the focus

如何做到这一点?

Answer 1

通过使用<代码> 替代持有人/代码>属性,这种特性得到最新浏览器的支持:

http://jsfiddle.net/cT9kg/30/

Answer 2

I ve used this tutorial from buildinternet.com many times - it works flawlessly.

Answer 3

类似情况:

<script type="text/javascript">
    function onfocus() {
        document.getElementById("box").setAttribute("value","");
    }
    function onblur() {
        if (document.getElementById("box").getAttribute("value") == "") {
            document.getElementById("box").setAttribute("value","Enter Something");
        }
    }
</script>

<input type="text" id="box" value="Enter Something" onfocus="Focus()" onblur="Blur()" />

友情链接