</head>
<body>
<script>
window.onload=function(){
document.getElementById('click').onclick=function(){
if (document.getElementById('text').style.display=='none'){
document.getElementById('text').style.display='block';
}else{
document.getElementById('text').style.display='none';
}
}
}
</script>
<a id='click' href='###'>文字超链接</a>
<input type='text' style='display:none;' id='text' />
</body>
文本框下面可以加个按钮吗?按钮跟输入框放在一个DIV里面啦
<!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>

<title>Bom对象</title>
</head>
<body>
<script>
window.onload=function(){
document.getElementById('click').onclick=function(){
if (document.getElementById('text').style.display=='none'){
document.getElementById('text').style.display='block';
}else{
document.getElementById('text').style.display='none';
}
}
}
</script>
<div id='text' style='display:none;' >
<input type='text' />
<input type='submit' value='提交'/>
</div>
<a id='click' href='###'>文字超链接</a>
</body>
</html>