[jQuery] prefill textarea

[jQuery] prefill textarea


nothing seems to work.
how does jquery prefill a textarea ?
<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="http://code.jquery.com/jquery-
latest.pack.js"></script>
<script type="text/javascript">
$(function() {
$("#textareaName").val("hello1");
$("#textareaName").text("hello2");
$("#textareaName").html("hello3");
$("textarea[@name='textareaName']".val("hello4");
$("textarea[@name='textareaName']".text("hello5");
$("textarea[@name='textareaName']".html("hello6");
$('textarea').val( "hello7" ) ;
$('textareaname').val( "hello8" ) ;
});
</script>
</head>
<body>
<div>
<textarea
     id="textareaname"
     name="textareaname"
     rows="5"
     cols="20"></textarea>
</div>
</body>
</html>