js获取textarea 文件内容报错
<script language="javascript">
function test1(){
var con=content.innerText;
window.alert(con);
}
</script>
</head>
<body>
<textarea rows="20" cols="20">
</textarea>
<input name="mytest" type="button" onclick="test1()" value="测试"/>
</body>
</html>
错误：var con=content.innerText;
求解答，谢谢！
[解决办法]
<script language="javascript">
function test1(){
var con=document.getElementById("mytest");
window.alert(con);
}
</script>
</head>
<body>
<textarea rows="20" cols="20">
</textarea>
<input id="mytest" name="mytest" type="button" onclick="test1()" value="测试"/>
</body>
</html>
