<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta
http-equiv="Content-Type" content="text/html; charset=utf-8"
/>
<title>无标题文档</title>
<style
type="text/css">
<!--
.search{
padding-right:10px;
padding-left:10px;
padding-top:5px;
padding-bottom:5px;
width:
280px;
background:#1A93CC;
float:left;
position:relative;
}
.search
.input{
padding-top:2px;
height:16px;
width: 180px;
border: 1px
solid #0086C6;
font-size:14px;
background:#fff
url(http://www.funshion.com/img/search_btn.gif) no-repeat right
0;
}
.search .btn{
}
.label{color:#ccc;position:absolute;left:12px;top:6px;display:block;height:22px;line-height:22px;font-size:12px;}
span.submit{cursor:pointer;position:absolute;left:171px;top:6px;width:20px;height:20px;text-indent:-999em;}
-->
</style>
</head>
<body>
<div
class="search">
<form action="{sys:plusurl}search/index.asp"
method="post" name="frmsearch" id="frmsearch">
<input
name="keyword" type="text" class="input" id="keyword" value=""
style="float:left;" />
<label for="keyword" id="for-keyword"
class="label">站内搜索</label>
<span class="submit"
onclick="return
formSubmit(‘frmsearch‘);">搜索</span>
</form>
</div>
<script
type="text/javascript">
var $ = function(id){return
document.getElementById(id);}
var formSubmit =
function(id){
document.forms[id].submit();
return false;
}
var tip
= function(q, for_q){
q = $(q);
for_q = $(for_q);
q.onfocus =
function(){
for_q.style.display = ‘none‘;
q.style.backgroundPosition =
"right -17px";
}
q.onblur = function(){
if(!this.value)
for_q.style.display = ‘block‘;
q.style.backgroundPosition = "right
0";
}
for_q.onclick = function(){
this.style.display =
‘none‘;
q.focus();
}
};
tip(‘keyword‘,‘for-keyword‘);
</script>
</body>
</html>
原文：http://www.cnblogs.com/annabook/p/3622606.html