js做搜索框

<html>

<head>

<script language="javascript" >

function baidu()

  var startDate, endDate ,d ;

  d = new Date();

  startDate =d.getYear() + "-"+ (d.getMonth() + 1) + "-" + d.getDate() ;      //开始日期

  endDate =d.getYear() + "-"+ d.getMonth()  + "-" + d.getDate();         // 结束日期

window.open("http://www.baidu.com/s?tn=tcha_pg&word="+startDate+"endDate="+endDate+"");

function google()

window.open("http://www.google.cn/search?hl=zh-CN&q="+document.myform.mytext.value+"

&btnG=Google+%E6%90%9C%E7%B4%A2&meta=&aq=-1&oq=");

function KeyDown(event)  //回车提交数据  （ 这样火符也可以用 ）

event = event ? event : (window.event ? window.event : null);

if (event.keyCode == 13)

event.returnValue=false;

event.cancel = true;

google();

</script>

</head>

<body>

<center>

<form name="myform">

<input type="text" value="请输入搜索内容" name="mytext" maxlength="2048" size="55"

onkeydown="KeyDown(event)" onMouseOver="this.select();"/>

<input type="button"  value="google"  onclick="google()" />

<input type="button" value="最新报告" onclick="baidu()" />

</form>

</center>

</body>

</html>