Display content

I am completely new to this json
I would like to display a file content in a dialog box. any idea please.
[110 byte] By [Rolander] at [2007-11-19 19:17:27]
# 1 Re: Display content
something like
function onLoad(obj){
alert(obj.reponseText)
}
//Create a button to press for fun
<input type="button" onclick="sendRequest(onLoad,' ', 'GET', '[yourfilename]', true, true)">

Best regards,
Mattrang at 2007-11-10 3:59:04 >