javascript学习（一）
<!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=gb2312" />
<title>无标题文档</title>
</head>
<body>
<script language="javascript">
function check()
{
{document.write("<font color=red>"+ "你输入的用户名是："+formmain.searchkey.value)+"</font>";}
}
</script>
<form id="formmain" name="formmain" method="post" action="test1.html" onsubmit="check();">
<input type="text" name="searchkey" id="searchkey" />
<input type="submit" name="searchbutton" id="button" value="提交"/>
</form>
</body>
</html>
