用javascript实现评论.不能换行求解

[已解决问题] 解决于 2012-02-27 12:39

<!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">
function AddComment()
{
var name =document.getElementById("name").value;
var context =document.getElementById("context").value;
document.getElementById("comment").innerHTML +=name+":"+context+"";
}
</script>
</head>
<body>
<textarea id="comment" rows="20">
</textarea>
<br/>
<form>
名字:<input id="name" type="text" value="匿名"/>
<br/>
内容:<input type="text" id="context"/>
<br/>
<input type="button" value="提交" onclick="AddComment()"/>
</form>
</body>
</html>