HTML + jQuery - Textarea won't .load()

I'm trying to use jQuery's load() to change the value of a textarea but it doesn't work

HTML:
<p><textarea cols="70" style="height:200px;border:1px solid #ccc;border-radius:3px;padding:4px;" name="html" id="html"></textarea></p>

jQuery:
$("#html").load('ajax/'+href+'.php');

also tried:
$("#html").text(load('ajax/'+href+'.php'));

and:
$("#html").val('');
$("#html").load('ajax/'+href+'.php');

It just stays blank. Can anyone help me?

It should work just like that (example).
Seems there must be an error somewhere else in your script, or it's possible your jQuary download is corrupt or something.