非活性按钮
<html>
<head>
<title>Login</title>
<script type="text/javascript" src="show.js">
</script>
</head>
<body>
<table>
<tr>
<td>
用户名：
</td>
<td>
<input type="text" name="userId" id="userId" style="width: 150px" maxlength="9"/>
</td>
</tr>
<tr>
<td>
密 码：
</td>
<td>
<input type="password" name="password" style="width: 150px;" size="20" id="password" onkeyup="javascript:show()"/>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="button" name="submit" style="width: 50px; height: 25" value="登陆" id="submit" disabled />
</td>
</tr>
</table>
</body>
</html>
show.js
function show(){
var userId = document.getElementById("userId").value;
var password = document.getElementById("password").value;
if(userId =="" || password ==""|| userId ==null || password ==null){
document.getElementById("submit").disabled=true;
}else{ www.zzzyk.com
document.getElementById("submit").disabled=false;
}
}
补充：web前端 , JavaScript ,
