文本框Input文字输入提示，点击消失离开还原

<meta content=”text/html; charset=gbk” http-equiv=”Content-Type” />
<title></title>
<style type=”text/css”>
input{ width:200px; height:24px; line-height:24px; border:1px solid #999; background:#ccc; margin:15px 0 0 100px; padding:4px; color:#666;}
.veryhuo_com{ background:#E0FEE4; border:1px solid #093;}</style>
<input name=”” type=”text” value=”请输入姓名：” /><br />
<input name=”” type=”text” value=”请输入昵称：” /><br />
<input name=”” type=”text” value=”输入验证码：” /><br />
<input name=”” type=”text” value=”请输入手机号码：” /><br />
<input name=”” type=”text” value=”请输入电子邮件：” /> <script type=”text/javascript”>
var aInp=document.getElementsByTagName(‘input’);
var i=0;
var sArray=[];
for(i=0; i<aInp.length; i++)
{
aInp[i].index=i;
sArray.push(aInp[i].value);
aInp[i].onfocus=function()
{
if(sArray[this.index]==aInp[this.index].value)
{
aInp[this.index].value=”;
}
aInp[this.index].className=’veryhuo_com’;
};
aInp[i].onblur=function()
{
if(aInp[this.index].value==”)
{
aInp[this.index].value=sArray[this.index];
}
aInp[this.index].className=”;
};
}
</script>