<!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>
<script type="text/javascript">
window.onload=function()
{
document.getElementById("btn").onclick=function()
{
var val=document.getElementById("text").value;
alert(val);
}
}
</script>
</head>
<body>
<input id="text" name="text" type="text" />
<input id="btn" name="btn" type="button" value="提交" />
</body>
</html>
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