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<style type="text/css">
body{ font-family:"宋体"; font-size:12px;}
.i{ font-style:normal}
.n{ font-style:normal;color:#ccc;}
input{ width:100px; height:15px; line-height:15px; border:1px solid #CCCCCC;color:#999999}
</style>
<title>无标题文档</title>
</head>
<body>
<input name="search" type="text" id="search" onfocus="f1()" onblur="f2()" value="请输入内容" class="i"/>
</body>
<script language="javascript">
function f1(){
var s=document.getElementById("search");
if(s.value=="请输入内容"){
s.value="请输入内容";
}
s.className="n";
}
function f2(){
var s=document.getElementById("search");
if(s.value==""){
s.className="i";
s.value="请输入内容";
}
}
</script>
<input name="search" type="text" id="search" onfocus="f1()" onblur="f2()" value="请输入内容" class="i"/>
</body>
<script language="javascript">
function f1(){
var s=document.getElementById("search");
if(s.value=="请输入内容"){
s.value="";
}
s.className="n";
}
function f2(){
var s=document.getElementById("search");
if(s.value==""){
s.className="i";
s.value="请输入内容";
}
}
</script>